Drone or Survey Mission in Stone Mountain?

Late reporting sorry, watching UFO show on TV and thought I'd better report this.
 Myself and three other people (2 couples) driving home (apartments in Stone Mountain) from the midnight movie. No booze, no drugs, no traffic at that time of night.  Came around a curve and there was a REALLY bright light shining on the road in front of us.  I was driving and I shut off the headlights in the car.  I remember thinking that we didn't want to be discovered. The craft was so low that we could see the light reflecting off it.  It had lights of it's own but I don't remember the colors.  It seemed to be surveying the road.  The light would follow the left side of the road and then it would cross and follow the right side.  We didn't say anything to each other.  There was no noise from the craft.  Maybe it saw us but it accelerated away fast.  Somebody said follow it.  We were all excited.  There was no road going the way of the craft.
 When we got home, we compared notes and we all saw the same thing.  We lost no time  We left the movie at about 1:30 and it was 1 hour drive home.  We called Hartsfield Airport, the police and Dobbins Air Force Base.  Everybody said nothing in the air.  The guy at Dobbins asked me if I wanted to report it.  After thinking about it, I said no and hung up.
Time and date are approximate.  PD