157 is getting real close to what I saw while driving one afternoon. Cept I saw three white orbs clumped in a triangle. One up and two under. One orb shot off to the righ, from the left side of the road to the far right side, stayed just a second or two, then shot right back to its original place.
Since the traffic was at a crawl, I was able to watch it our my open window, and when that orb got back into place, all three lights went out. Very weird!