By 'law' they cannot do this.
Especially if they took your hookah i'd fight it... AF isn't worth fighting for :P but a hookah is.
But if you really lost the 3 containers thats a good $30-$50 bucks that you should have the right to have... & its legal to have as long as you aren't 'smoking' it then they can enforce new rules with a new 'contract' that must be signed.
But whatever you signed to live there, look through it.
Happened to me over here at WWU... I fought the law & I won