In California, there is an ad running on KRLA where the CHP is asking you to turn in your neighbor if they have out of state plates on their cars. "Just give us a call, we'll do the rest". Same thing will happen with this. Some busybody malcontent will see you smoking in your car, get on their cell phone and call some "tipster" number with your license plate number. You'll get a ticket in the mail, just like with the red light cameras. You won't be able to contest the ticket because the burden of proof will be on you.
Sounds outrageous, but as the frog boils, the politicians get more brazen.