What the...???

Things you notice when you turn out the lights to go to bed. So it's 1:30 am we start to head to bed and we notice lights outside, so we look and there is a cop car at the corner, ok not odd so far, but then they turn off their headlights and back up into the position you see here, then stop the car. They sit like that for about 10 minutes, then an ambulance comes and turns down the street past them, a few minutes later the cops turn around and head down the street after them??? No lights, no siren.... what the heck is goin' on in the hood??? I have no answers, just question marks above my head.... if we here any news, we'll update you, in the meantime, good night from the Twilight Zone......