From the link:
He stopped near the seat of the Burshtein Rebbe Shlita, who attempted to scare the cat away, but it refused, and …It remained until after Kedusha, after which it exited the Shul.
The cat didn’t stay until after aleinu??? That is surprising! Even cats are trying to get out early because of “work” these days! Ah shande!
What I don’t understand is, you can’t move around during kedusha, so why would the Rebbe try to get it to move?