Yeah he let go. He's sleeping now back in his tank. I'll probably skip tonight and feed again next week. How can I tell if he's got a broken tooth? and if he does, what do I do?
Sorry massive panic haha...
edit: I didn't try the whole deal with trying to get his jaws to open manually for very long (ie I did very little with that idea... for fear of hurting him), but that's a good thing to keep in mind next time. But yes, massive panic in the land.