OK, but in a similar situation (speed limit that most people exceed by 5-10 mph), I would prefer that the speed limit was raised by 5 mph, and then enforced all

OK, but in a similar situation (speed limit that most people exceed by 5-10 mph), I would prefer that the speed limit was raised by 5 mph, and then enforced all time time (e.g., via a well-calibrated speed camera), not randomly when the town needs extra cash and places a traffic cop nearby to extract a tax.