When did Rhode Island annex Medford?

John Mullaney reports:

So just moments ago two state police cars went by me in Medford. The only thing is these were Rhode Island State Police cars. The second of the two put on its blue lights to go through a red light to keep up with the first who had made the light. Then 10 minutes later I see another RISP cruiser this time an SUV in a parking lot. Now what the hell is going on?? Have we been invaded?? I'm a long way from the border here.