In San Antonio, there's a suburb called Alamo Heights that is completely surrounded by the city. Heights has two of the Charger cop cars, one white with conventional police markings and the other that's dark blue with some kind of marking on the side that's only visible when you're directly to the side of the car -- a little bit to the front or a little bit to the rear and the Alamo Heights Police sign disappears. It's pretty cool. Needless to say, when I got to work in the afternoons, the blue Charger generally has someone pulled over to get a ticket.
