I would consider letting her out to eat if it was just a mess that needed cleaning. But you said she did this while she was being disciplined for something else and was giving a lot of backtalk, and that's a whole new ballgame in my book. That behaviour is NOT tolerated. I'd let her come out when she's done cleaning and ready to apologize for the attitude.
4 in 5 years, what were we thinking? July 07, April 09, Nov 10, and August 12