A large triangle with many lights flew close overhead as I was getting into my truck

As I entered my truck I looked up and saw what I thought was a commercial airliner. My first thought was, "Wow they're flying really low! If someone wanted to, they could shoot that." The object was in plain view, about the height of a single engine plane in my experience (Crop duster) It was a triangle shape, at the point was one light, and on the corners were two lights on either side. The lights were steady and not flashing. The craft was silent. At watching it fly over for a few seconds my heart sank as I realized how strange it was. No flashing lights, no lights on the tail, heck no tail! It quickly flew over, but not any faster than a standard aircraft. The sighting lasted about 30 seconds before I lost sight of it. Come to think of it, it disappeared rather quickly. Like completely gone from vision. On the drive home I saw several aircraft, all had flashing lights and lights on the tail of the aircraft.