He might come down or he might not. Sometimes people find their snakes after years of them being missing. Hopefully he'll get hungry, smell the pinkies, and get himself trapped so you can find him. Don't give up too soon. Keep checking the traps and if you see him wedged in somewhere just be gentle wriggling him out or take whatever he's hiding in and put it in his tub/tank if possible so he can get out on his own.