It was after hours, so we couldn't return the rat. We had nothing but a cardboard box to keep it in, and it chewed out. AND the cats were bound and determined to eat it. The other roommate FREAKED out when I suggested just offing it and freezing it instead.
I checked my temps again, 93 warm side, 84.5 cool side. I have an IR therm that I use to check temps twice a day - they haven't fluctuated more than a degree in the last few days.