That is what will follow the red light cameras and then the surveillance cameras on light poles will come shortly after.
Of course, if you want to argue about a "right to privacy", you can't find such a right in the Constitution, but you will find it mentioned and applied in Roe v. Wade.
Horrors! That means you have to obey the speed limit! How dare the government try to enforce the law! That's not the purpose of government! Wait, no it is. Dooh!