It's shocking to me that it requires an OBD device and a surveillance app. Can't they just check your odometer when you go to update your registration?
They do that in AU / VIC for the EV road use tax, you have to upload a photo. I don't see the problem, just make it illegal to lie and fine the ones you catch.
Take the car from the ones you catch.
That would require trusting the public. But no, we are required to trust the government and some sketchy third parties I've never heard of.
State probably gets a kickback from the third parties for the information they get about the drivers.