There's a RLC on a main intersection near our house, and they don't even put the camera in the box anymore. There has been so much inconsistancy with the camera that they dont bother with it.
My Dad a few years ago was in the right turn lane, drove over (through) the stopline, waiting for approaching cars to stop coming the other way. When the light turned red, he proceeded to turn right through the intersection, "clearing" it if you like. But all the camera saw was his car in the middle of the intersection, and then 7 seconds later when he had cleared it.
According to the police, he had crossed the line after the light turned red, but in truth he crossed it when the light was orange. The photos did not reveal this, as they were still shots and not video footage. He took it to court, but the police got it their way and dad was fined $200 or something.
This brings up what someone else said about the camera removing the police's personal intuition.
BTW if you ever want to see if a RLC is working or not, drive through the intersection when the light is yellow, stop in the middle, wait for the red light and then reverse back to behind the line. They can't get you for this and you will be able to see the flash.
Sorry for rambling...
it just gets under my skin.