Media Collective Social Media Marketing Mindshare: The Next Great Ad Network? California Considering Digital License Plates

Broke California Senate Passed a bill SB1453 vote of 25-0 to give the DMV authority to investigate the use of electronic license plates on cars that will at stops of longer than 4 seconds will become a digital advertising display to raise revenue for the state.

The State would become a Mobile Ad Network,, watch out google, facebook and others who monetize via ppc or cpm or even display. If they opt to do this and begin generating income, don't you think other states will follow ?
Ok I'll admit it, I reside in the Sunny So. Cal area. We have a lot of awesome things here from spectacular weather, beautiful beaches, easy going life styles, we love the arts and green things BUT,
I see a problem with this:

Citizens already pay license & registration fees - sudo forced employment w/ no benefit, nor is there mention of credits to drivers for use like solar grid systems do.

Forcing cars to display advertising on private property- constitutional issues?

Privacy with the plates ability to track vehicles to serve ad's they are in effect attaching a state controlled device to monitor your driving behavior, where you are and what you are doing.

Would it interfere with law enforcement? Hey if I stop they cant see my license number?

How about ad's displayed totally disagree with your values, or are brands you don't advocate for or embarrassing ads

I dont know of any man 40+ that wants to drive a car with a license plate flashing about Viagra.

How about a woman in a car" - Traffic getting you a little aggravated? You might need a Midol.Vote For Bob Blunderer For Congress because the other guy xx$%."
Of course they push, we can use it for amber and emergency alerts, but in reality people will become accustomed to dialing out aka not paying attention.
So, what do you think?