Don't forget, when you do the water changes for the time being,
make sure it's warm enough for him. Don't give him cold water, that will never help. You may need to buy yourself a cheap $1 thermometer for this to help. Also, again, try to keep him warm.
I don't know how colleges work, but is there someway you can hide him in a second? (get a cardboard box, cut the bottom, and throw it into the tank and just make it look like a box)? Or have a place where the RA won't check? And how often do they check as well, or is it sometimes super-random?