I think this is a good opportunity to use this as a learning experience for yourself and anybody else who may read this thread...
You can't cut corners with security. These animals are fantastic escape artists, as we saw here. Proper cage screens, clips, locking mechanisms, etc...are an absolute must when keeping snakes.
Anyway, I'm stoked for you that you found him. obviously don't put him back in that enclosure without a proper licking system in place. Give him a little time to re-acclimate and you'll be good to go.
Too late to edit...
I meant to say a LOCKING system. I don't know what a LICKING system is, hahahhahahaha!!!