If exiting injustices are any indication I predict the following:

In democracies that will likely result in speed limits and traffic laws that reflect how people actually drive or reduced penalties or reduced fines to the point where a large enough fraction of the population can pay to play. And then half of HN will hand wring about how we have an 85mph speed limit on the interstate and won't somebody think of the children.

There will be a few rich suburbs (the kind of places where the electorate clutches their pearls at the idea of anyone breaking any law even though they all text and drive in their land rovers and pay their baby-sitters under the table) that figure out they can just do it to outsiders only and create a revenue stream. They'll have a good 5-10yr run in the time it takes the courts to smack them down.

My country, unfortunately, already has this, though it's not fully automated. Cameras will take pictures whenever they detect someone breaking traffic lights. The license plate is read off, and a ticket is mailed to the car owners's house.

I think someone still looks at the pictures right now for 5 seconds before sending it off, but that won't last for very long.

They already exist for insurance. Many ads claim to reduce your insurance bill by proving you drive safely. They work by siphoning all the data off the OBD2 port and handing it to the insurance companies.

Teslas already have a user-facing camera. They are using them to make sure that if there's an accident, they can pin the blame on the driver (perhaps not looking straight forward, etc), and not their own technology.