If I do have the time I may take a crack at fixing it, although I don't fully see it happening.
I actually do have this problem, it got to the fact that I just had to not split when I record anymore. not really sure how to fix it though, may or may not have something to do with the code and I'm not really that great with coding.
Personally I don't think of it as a glitch because it seems to me like it's in the same vein as jumping closer to the makeup room with the phone. Really it's just playing the tone and walking away which anyone could do. I would consider it more of a glitch if the game kept you still while playing the tone but you could move anyway; kind of like getting off the lift even though there's invisible walls blocking you. I'm not sure what the mods think of it though, really if they thought of it as a glitch they probably wouldn't have accepted the run.
I got the final hit on Wooly when he was half-way off screen and when I did, he disappeared, and game was stuck in the fanfare. If nobody knows about it they should be careful.