The legislation that allowed red light cameras on a test basis was rescinded (or, perhaps more accurately, allowed to sunset) because (as feared by many) some towns couldn't resist the corruption urge and started messing with the timing of yellow lights to shorten it. Once it was shown/proved that some intersections where the cameras were deployed had their yellow light duration shortened (in violation of mandated standards) the state did away with the red light camera test. So, if you are upset about the current state of things wrt red light cameras, blame the corrupt politicians that tried to squeeze more money out of people.