Photo taken while driving at night

I was driving down US 41 at 2am, lights on the buildings were flickering and I was trying to get a photo of that. There were no cars passing or approaching me. The photo I got revealed a disk shaped object with a shadow on the road, the shadow makes me inclined to think that it wasn't my camera malfunctioning, because other pictures I got of the building were very clear and there was no shadow in the other pictures. There is also a reflection of the object on my car. As I was taking the picture it felt like something very fast passed me, but it was not a car, like I said there were no other cars on the road.