Okay, you're seeing him, we're not- & have no idea how cold it is where you are. Use your best judgement about when to feed him, but give him a few days at the very least to rehydrate- remember that regurgitations can actually kill a snake & should be avoided always, & poor hydration can result in the inability to digest. Hydration first before food, always. I hope he's alright- & when you get a chance, pay attention to his breathing to listen for squeaking-whistling-crackling sounds & watch for bubbling in his mouth that can indicate an RI. All the best-
*Make SURE he cannot escape again- snakes remember how they got out & will try again.* You're also lucky he's alive & not injured- snakes seeking warmth under appliances like refrigerators & freezers have gotten tangled & killed by running motors. Please be more careful- I'm very happy he "dodged it" this time, but next time might not go so well. Snakes don't understand the danger from human things.