I hope that works for ya. Somehow, I don't think a dirty cabin air filter would give you the problems you described overnight. I know its too cold to turn on the AC, but I wondered if you got the odors when the temp control was turned all the way to "cold" or when you used the defroster or vent settings? It looks like it would be pretty difficult for a mouse to squeeze into the ductwork, die off, and cause that kind of odor problem. By the way, you don't have any "friends" that might be playing games with your car, do ya?
