If parties were explicitly banned by the school or state then it's a violation of that rule, can't break rules or regulations and claim freedom of assembly when at a party lol. You can use your freedom of speech to yell out the answers in a lecture hall, but that doesn't protect you from the professor failing you, just like you can party all you want but if its against the rules, you will get in trouble. OP, try to obtain an official copy of your transcript to see if they put any remarks on there about you getting removed from housing and proceed from there.