License plates were designed around identification. The whole point of having license plates is so the police know who your vehicle is registered to. Combine

License plates were designed around identification. The whole point of having license plates is so the police know who your vehicle is registered to. Combine that with the fact that you're driving around on publicly funded roads, and you find yourself without any right to privacy whatsoever. You're in public, the very definition of "not private". Where your car goes on public roads isn't private, even if you want it to be. It never has been. That being said, just because your car is somewhere doesn't mean you are. Any competent defense lawyer in a criminal case would point that out. In some states, traffic cameras can't be used to issue tickets unless the camera has a clear picture of the driver.