Every time somebody decides to ram their suburban up the ass end of my car and flee the scene, the first thing the police ask is "did you get a good look at the driver" followed closely by "did you see the make/model/plates" and "what state was it registered in?" I don't have a lot of sympathy for windows dark enough to prevent me from making out the driver, the blatantly illegal license plate hiders so common in CA, and other such nonsense. If we want to adopt a policy of registration/licensure/insurance/whatever not being legally required for privacy reasons or something then that's one thing, but current policy tries to make sure people are responsible for their actions with a relatively small impact on privacy, and unless you're arguing against the broader issue then I think any tint law complaints are misplaced.