CR cameras take in over 7 million dollars per year.CR used to place a couple cars strategically around the city to deter rush hour speeding, lik in the median by 30/380. That ended around 2010 or so I think.
IDK what they do now, but it sure isn't traffic enforcement. I think 15% of cars in CR don't have plates at all; apparently your registration fees are optional now. But never see anyone pulled over, ever, unless there's been a crash.