How big is the snakes you have?
Do you know your roommate?
My roommate and i have known each other for years
My roommate bought 2 snakes during the school year and had no problem keeping them in the dorm, they were "not allowed" but no one is allowed to just walk in your room and look around.
He just kept them in tupperware. We had friends come in our room all the time and no one ever noticed or thought anything of the tupperware.
Its not hard to do at all and then you dont need to pay for running the heat pad and etc.
So its easy... u should bring them or one of them with.