Adding to this, automatic plate flippers exist and are pretty popular for show cars to display something else when parked. Typically wired to ignition so it shows your plate only when the cars running.

Issue is if you street park dependent on the state, if the vehicle registration is hidden by the plate being flipped they can likely tow it. Would work great for at work/in your driveway though. Could maybe just have a bypass switch for if you need to park somewhere and display the plate.

Still a pain in the ass that it's this bad though.

The fact that your data is exposed to someone doesn't mean that you have to give up and just let everyone else have it as well.

I don't entirely agree with this: I know there are no ANPR cameras within my town for example. There's a speed camera that only takes photos if you're speeding, but ANPR cameras are limited to motorways and trunk roads, I can move around my town and the surrounding ones without clocking ANPR. Of course I'm still on regular CCTV and cell towers triangulate my phone, but that requires authorities actively looking into me which I doubt they are.

I tend to use an eBike where possible but again the phone triangulates if I have it on me, and it wouldn't be too hard to follow on cctv if you really wanted to. Everyone and their mother has a doorbell camera now