I told you they are crafty when it comes to escaping. If there is a will.... The only thing I would do is isolate him in a bucket for a couple of days instead of dropping him back in the tank and hold off on feeding. The digestion process uses water. Sounds like he was not too dehydrated, but he will be slightly none the less. Let him have some alone chill time to recoop. He will have a broken shed over the next few days too most likely. When my girl got out a while back it took me a day and a half to find her.I am now seriously considering doing away with the aquarium top and going with a screen top.
Glad you found him quickly. Hopefully you and him will grow from this experience. lol