In the games I remember Rhoads complaining to officials (TTech, Utah, Texas) it helped, hurt, and had no effect on officials. In the Tech game after the OPI on Williams' would be TD. Rhoads was ******, and the next play we got an illegal hands to the face call for us. In the Utah game we got called for a bad PI call. Rhoads went off. We throw a 30 yard pass downfield the reciever was trying to come back to the ball while the defender never turned around, and made obvious contact. No call was made. In the Texas game we get held all game, and no hold gets called.
So it can help, but mostly it doesn't, however it does show the team that he is fighting for them. When I played bball in HS my freshman coach would get ******, and argue for calls for us. Our varsity coach wouldn't even blink at bad calls. Guess which coach I'd rather played for.