Greetings from the asshole. :) This discussion is not for here. It's, how do you say it in Sofia... too provincial. :P
I don't see anything wrong with pointing that maybe the people who speak Bulgarian with Karolinka should use proper Bulgarian - the same way teachers at schools should use proper Bulgarian.
Would you call me an asshole if I said that "Happy today?" is not the proper way to ask where the "Happy" restaurant is in Bulgarian? Or maybe it's because I am pointing out that YOUR speaking is wrong and you feel offended because, you know, you are from the capital, you cannot speak improperly? Think about that.

P.S. I've always hated my teachers speaking in the local dialect. I am from Ruse.