Had to check with the wife on that one. She shops at Publix all the time, because the food is better there than Winn Dixie. There is no noticeable price creep (she watches), and they will allow you to split a BOGO for half price.
But we're in central Florida, so perhaps it's a region/store level policy decision. She did mention that they will pester you about doing it...but they will let it happen here. *Shrug*
...Christ we are way the hell off topic now....ain't we?