This is a pathetic excuse for introducing intrusive technology to solve a non-problem. If you think about it for a bit, it would be a simple matter to have a cop start issuing fines until the non-compliance rate drops to an acceptable level. This would cost nothing, as traffic cops generally collect far more in fines than their wages. Instead, our Dear Leaders want to use this situation to direct the indignant fury against cheaters towards promoting an array of face recognition cameras to track your every movement.*
* Of course, for this phase of the plan, they won't publicly acknowledge that the cameras are there to ID you as well as the number of people in your car.