Judges require warrants to put a GPS tracker on your car. Now that Flock cameras are so ubiquitous in many cities, this gives them access to the same data without a warrant.
But, I do not think it's reasonable for an automated system to systematically capture, store, and analyze all of my movements (or anyone else who is not suspected of a serious crime). If they suspect I have done something illegal, they should have to get a warrant and then the system can be triggered to start tracking me.
I understand the desire for the data... sometimes I would like to know if my kids are following the rules at home, but I have a stronger conviction that I don't want my kids to grow up in a home where they feel like they are under constant surveillance. It's a gross feeling to be under constant surveillance, like you're living in a panopticon built for prisoners, which is an unfair side effect when you've done nothing wrong. Mass data surveillance of everyone is a totalitarian dystopian that I don't want to live in.
The fact that driving is a 'privilege' doesn't negate your rights to be secure in your papers, the police should have to have articulable suspicion that your car is unregistered or unlicensed before they can demand you to display your plate.
I want strict, strict guardrails on when and where that occurs. I want that information erased as soon as the context of the citation wraps up. I want every company/contractor in this space FOIA-able and held to as strict or stricter requirements than the government for transparency and corruption and other regulation. I don't want every timestamped/geostamped datapoint of every law abiding driver passing into any juncture hoovered into a data lake and tracked and easily queryable. That's (IMHO, IANAL, WTF, BBQ) a flagrant 4th amendment violation, and had the framers been able to conceive such a thing, they'd absolutely add a "and no dragnet surveilance" provision from day 1.
If that seems hypocritical, my line starts with "has a crime occurred with decent likelihood?" "Lets collect everything and go snoopin for crimes" is beyond the pale.