There have been court challenges to the cost neutral clause and as a result several Peninsula cities have stopped using the red light cameras, others are in the process of dropping it, among them is Redwood City. Another trend seems to be the growing use of right turn cameras or those intersection that monitor if you make a "California Stop". A California stop is also referred to as a rolling right turn.
Red light cameras in Redwood City have not resulted in a significant drop in accidents
Redwood City to review use of red light cameras