looks similar to one me and wife saw many years ago in the middle of nowhere on a highway. It came up out of the forrest kept same distance from the car. Zipped across the road up to the mountain. Then zipped back to original side of road. Then a thin beam of light went slowly from left to right in the car like it was a scanner. It also had like a flood light going around it. All white lights. scared the shit out of us, then it went up so fucking fast till it was a dot then gone. I would not ba able to say how big it was i was scared shitless though.