I worked at Oregon State University (classified staff, not faculty) when the Engineering Depts got a contract to figure a way to track where vehicles went. In particular they wanted to be able to tax vehicles that traveled the most difficult roads to maintain, like the mountain passes. Federal money came in for that project, as well as our ODOT. Anything that starts here is going to radiate out to the other states. Until we force gov’t back to its LIMITED powers, we’re all going to end up facing this kind of nonsense.
Supposedly they take your picture and you find your license number online and you pay it.
I don't know what happens if you don't pay (if you are from out of state).