Not a lawyer but just because you’re not in the state doesn’t mean they can’t fine or lien you for it or cause issues with your license. There are interstate compacts so that you may have issues getting it registered in the new state if the old one has you flagged for something.
While this was in another state it shows how things can go crazy when a state wants to push an issue
State Has Crazy Law for Out of Town Visitors
And a followup video just for those who are curious how it worked out
State Reverses Itself: Man Not Required to Register Car in MASS
But the warning is the same. States have some flex when they want to push an issue and there’s a real possibility that the state will be notified about the sale by the dealer/or DMV when the title transfer is completed.