Can pretty much guarantee they will find a way to keep them out even if undefeated. Sure they will get a BCS game but screwed out of the national title game for "sexier" names. Lets say a 1 loss Florida, 1 loss USC, 0 loss BYU. Do you really think they will pass up a Florida vs USC title game?
I wouldn't trust them to give a BYU, Boise State, etc a fair shake.