> How would that have ever worked for a car in OR as a CA resident? You don't need inter-state data sharing when you have to register the newly-purchased car with the CA DMV and fill out the form saying you bought it inside or outside of CA.
I haven't seen it as much in WA, but I used to see a lot of Oregon plates on new vehicles in Northern California where I had reason to believe the driver was a resident of CA. I do know someone who was pulled over for driving like a Californian while having out of state plates, so there's some enforcement that way anyhow. (Changed several lanes from the fast lane to the exiting lane in a continuous motion)
I haven't seen it as much in WA, but I used to see a lot of Oregon plates on new vehicles in Northern California where I had reason to believe the driver was a resident of CA. I do know someone who was pulled over for driving like a Californian while having out of state plates, so there's some enforcement that way anyhow. (Changed several lanes from the fast lane to the exiting lane in a continuous motion)