He'd get hunted down extra fast. The cops would unload full clips on random cars that just look like the killer's car. They'd send every man they've got after the killer, and then burn down the cabin in which he's hiding.
Cops are right wing assholes and look after their own.
Eh, just another proposed use case where a simple normal database does the job much better. And without unnecessary carbon impact, you're trying to sell the removal of those after all!