re: Herpetology advice

Food, water, heat. Throw in a couple of hiding spots. That's about it with snakes. The heat really isn't even critical for native colubrids, if you're keeping them in a heated home. I'd still use an under tank heater though, especially since the snake is injured.

There are tons of care sheets, forums, and facebook pages dedicated to the care of snakes. You can probably find food on craigslist, if you don't have a box store near you. You can also order frozen rodents online, but it's not really cost effective unless you're ordering in bulk.