Particularly anywhere rural or off the beaten path

You wouln‘t really have the kind if hardware there. The communication relies on a multi hop mesh that would‘t work anywhere without sufficient coverage.

You do know you have a unique ID displayed on a big tab on the vehicle, right?

And I don’t want to give Flock more OTA capabilities!

Even our tires blast out IDs.

https://www.rtl-sdr.com/exploring-the-privacy-risks-of-tire-...

For a vehicle with a highly visible unique identifier on the front and rear? In my country basically every private carpark has ANPR cameras, the tech is dirt cheap now.

It's much cheaper to deploy a dense network of cheap, covert radio loggers.