Four diffused indiscriminately-swirling lights followed me while I was driving; by the time I reached my house, there were only threeIt was a rainy, foggy night and I was headed South. I noticed a dim white light high in the sky and figured it was a helicopter or something. As I drove closer, I began to realize that it wasn't a helicopter or plane, or anything I'd seen before. I kept driving in the direction of the light, and I noticed it descending and approaching the ground. I turned off the main road and headed East, but that's when I noticed the light was following me and getting closer. As it grew closer, I was able to see it more closely. "It" was four diffused lights, swirling around as if chasing one another in circles. They did not have definite shapes, like lightbulbs would, but the lights seemed to swirl and liquify and move in inconsistant, constantly changing blob-patterns. I rolled down my window and waved, and the lights caught up to my car and "we" were traveling side-by-side (though the lights were in the sky, and I was on the road). I took several more turns, now onto a backroad, but the lights followed.Somewhere along the way, one of the lights must have taken off, because when I looked back, there were only three lights following me. I finally made it to my house and ran inside to get my roommates (to make sure I wasn't seeing things).The four of us (roommates) went outside. Everyone claimed to see it at the time, though now one of my roommates denies that she saw it.One by one, my roommates went back inside the house while I stayed outside and watched it for probably 15 more minutes. I noticed it getting further away now, heading West and rising higher in the sky. As it got further, the lights stretched and combined, forming a thin, bright, horizontal light. Then there was a bright green flash and afterwards, the light was gone.((NUFORC Note: Witness indicates that the date of the event is approximate. PD))