I think the main takeaway is that Pea is a good bloke. Odeon has made some unwritten rules around pea with "interesting" interpretations of old rules. He has been vague and suggestive rather than explicit as to what the punishment of such incursions would be.
If it does sound unreasonable, dickish, authoritarian, dishonest, underhanded, unfair, petty, tyrannical and/or slimy of Odeon. I would not disagree with any of such an assessment. I just do not know how anyone but Odeon could put a positive spin on his behaviour or justify it.