[BlackArcher101]

You got a new plate # when you went to the registry right? I don't see how he could use it without it being tagged in system as disabled. Don't bother with the cops, they won't do anything most likely. In fact, I would just leave it be. What is your intent here? What result do you want? If you want to find out how he got it, knock on his door. For all you know, he might have found it. But if the plate can no longer be used anyways, just let him keep it.