Yes there is a hack called something, like "no cooking on community lots"? (not sure if thats what
you mean?) But I'm buggered if I can remember where it is sorry. Try taking the fridges out of the restaurants; they are not needed by the cooks and its stops the idiots leaving food that rots when they can't get near the stove due to the cook.
There is also hack for faster seating/no yapping on the phone for the podium but again I have no clue where it is…sorry
edit- I found it- the "nopodiumphonecalls" hack is at Insiminator
http://www.insimenator.net/index.phpSomerset Cider prevents the link to the page