For KCBS, there is a rep advisory about it
Question: Can Chicken be breaded?
Opinion: At this point there is no rule against breading. It can be a part of a rub. Also, frying is
not illegal as long as the heat source is from charcoal or wood and NOT DEEP FRIED. (Rule #6
states: Parboiling and/or deep-frying competition meat is not allowed). February 17, 2006
That said, from what I hear, judges would probably not take kindly to it.