I’d hazard to guess that many states have people in place to track down information that will allow them to coerce buyers into paying.
Years ago, I bought a van from my Brother In Law. He had it titled under his plumbing company because he bought it for personal use, but paid for it with a company check.
6 months after the sale, I got a bill from the Department of Revenue for $600+ tax. Private sales are exempt, but apparently they didn’t consider my buying it from the plumbing company a private sale. I had no choice but to pay lest they hold any tax return, lottery winnings, or issue liens.
It will happen, just how and when is the question. They have to get the information first, and the first company that releases the data to an out of state government is the first company I blackball.