I was very mislead by this title. Locking and rapping kinda go together, not sure where the bowels fit in. Odd visual images though thats for sure.

As for "bowl wrapping"...it could be a sign, sure. Watch for a swell, followed by a shed in the near future, probably a pre-lay shed. That being said, bowl wrapping is not a guarantee by itself, some snakes just do it, or do it when its too hot in their enclosure.

And yeah, waiting until they aren't locked up to separate them, I'm not sure what the alternative is, but I wouldn't think you want to separate them when they are locked up.