Three white lights, no sound, not moving above tree line, then vanishes with no trace, sound,or light!

I was driving home from work and I wasn't far past the truck stop on the way to port hope from oshawa, ontario,canada, when I saw ahead in the distance a bright white light hovering over the tree line, maybe 100 meters off the side of the road on the north side, (I am heading east). At first I thought it was a helicopter searching the area or something. As I approached it I noticed there were 3 lights not just 1. They were in a perfect triangle spaced apart about the distanceof a baseball game baseline(1st to 2nd eg.). The strange thing was I couldn't see any craft whatsoever. If I recall correctly the lights were about the size of one of those "coca cola" advertizing "discs", roughly. I had my eyes glued to it at this point, I slowly hit the brakes and motioned the car off of the road, onto the soft shoulder, I snapped my head to the front to be sure I wasn't gong into the ditch and spun my head back toward the object. It was gone! No big flash of light, but the wierdest part was there was no sound!!Nothing! I felt sort of dazed for a second or two wondering "how the hell does a thing that friggin big disappear like that"!