My teenage daughter did almost the same thing. She called the police and said she was being abused. The police came and explained to her that it is not abuse when your parents won't buy you another pair of designer jeans.
What did you do after the police left?
BTW, 
to Intensitysquared.
It was just another drama queen moment in a life full of them. We had to move to a cheaper area when we lost a lot of our money and she blamed us for making her leaving her friends. Later we found a boy in her bed at 2:00 am and when we kicked him out, she stole our car and drove over 200 miles away back to our old town. She caused an accident on the way so the police stopped her and called us. She told her counselors at school how mean we were to her and that we wouldn't let her go to college (a lie). We let her use our car to go to work at McDonald's and then learned that she was letting all her friends drive it. She was also having sex with co-workers in the freezer room! She hated us so much that we let her move out before she turned 18. Then she told everyone that we kicked her out. My parents believed her and blamed us and decided to drop us out of their lives. Then she had a baby and moved near my parents. They co-signed on a student loan and a car loan for her, and again blamed us for not co-signing ourselves. When her baby was 5 she decided that she was tired of being a parent and asked everyone in the family to take my grandchild. We couldn't take her because my husband has a progressive disease and needs quiet. She finally got the father's stepmother to take her. Then my parents decided that to cut her out their lives but they never admitted to us that they were wrong. All this time I always gave my daughter money when she needed it. She complained about my parents and I reminded her how much they had helped her - her response "what have they done for me lately?" not kidding!
She isn't autistic; why would you think that? Autistic kids wouldn't do something like that. I know because I have one. Once my disruptive daughter left, he was so much happier and calmer. We all were.
She is a pathological liar. Everyone believes what she says because she believes it herself. Guess what she is doing now? Going to law school - the perfect career for her!
Thanks for the welcome.
I hope that your daughter does well in law school. I know someone who went to law school when he was a little older and now he's a lawyer who does pretty well. How old is your granddaughter now? Do you and your husband get to see her?
Kit probably wondered whether or not she was autistic because she wondered if maybe your daughter called the police because of a similar literal mindset that my daughter has of police being authority figures who can fix almost any situation.
It's been a little over a year since she abandoned her daughter. She claims that she will take her back after she finishes law school, but the main reason she abandoned her was because her new boyfriend doesn't like kids and she wanted to follow him to New York where he was going to law school. He is going to NYU and he has already completed one year. Apparently he is very smart because NYU is one of the top law schools. My daughter got into Fordham, which is still a good school. She just started, but I have no doubt that she will do well. She has an IQ over 145, and we were warned when she was young that kids with high IQ's are tougher to manage.
My son is only mildly autistic and he has a literal mindset in some ways. He was arrested as a juvenile so he doesn't have that view of the police. His crime was that he was convinced by a friend to graffiti their school, which is a felony in California. With his friends, he always took the path of least resistance. His main problem is his inability to relate to people. Social situations make him nervous and he doesn't understand the appropriate things to say a lot of the time. The worst time for him was when he was in high school, because the teachers, even though they knew he had a problem, still took his behavior personally and assumed that he was capable of changing it. He is very stubborn and it is very hard to change his mind. He can take it to extremes, and would rather starve than give in (for example). Despite his issues, he is quite good with computers and runs his own website which earns enough to support him.
I get to see my granddaughter occasionally. She lives quite close but her guardian isn't very good at returning my calls or leaving time in her schedule to fit me in.
You seem to be lost in your own thoughts.