For visual reference, this is the intersection:
http://maps.google.com/maps?hl=en&ll=32.917322,-117.2356...
The people getting popped for right hand turns are the ones to the left in this image. The cop sits under that bridge in the shadow area without any lights on, taking up over half of the rightmost (leftmost from this view) lane. The difference in brightness between daylight and under that short overpass bridge is very high.
100% enforcement of traffic laws calculated with machine precision is mindbogglingly stupid, and proponents willfully bury their heads in the sand regarding the conflict of interest and the eventual outcome of such an arrangement. So yes, I sympathize with people committing what amounts to normal human error, and despise those who seek to profit off of it.
I had previously thought such rigid quotas were mostly urban legend until I saw the pattern repeat over and over with my own eyes.
1. Blocking 3/4 of one of the lanes under the bridge is a danger to both motorists and pedestrians. 2. I highly doubt there are many pedestrians at this intersection. It is basically an industrial park and the road dead ends a block away.