No, the locksmith didn't have any explanation for what happened. It would have been hard for him to tell since he tried to drill right into the keyslot and mangled all of the machinery. He ended up slicing through the "U" part of the bar.

I'm debating about whether it's worth the time and hassle to try to collect from Kryptonite, especially since my wife is past her due date with our second child. Things are going to get pretty hectic. I'll probably take a deep breath, let this one go, and go for a ride!