The cops maybe, but the agencies are in the pockets of the companies that sell it. And they control the message given to politicians who are also on the pockets of these companies. The companies have no qualms bribing all over the spectrum of politics and haven't been stopped from doing it up to now. The systems are crap but super expensive for this very reason. The primary cost of the product is the bribes, not the technology. It's how the industry of road cameras (plate tracking, red light, speed, etc.) has always been.