I think it's hilarious. The only ones disrupting anything were the employees of BB. The Improv group was respectful, peaceable, helpful to other customers, made no commotion whatsoever, and politely left when asked to. If the floor management had also laughed, admitted it was a good joke and shook their hands, then said ok, it's over now can you please leave the store so we can get a picture of all of you for the lunch room bulletin board, it would have ended even better.