Object was just hovering in mid air, unlike any vehicle or object on earth. Was not affected by wind.

If you look at the image, below the object you can see air that looks oddly affected by the object, like a desert heat movie effect. The object did not move in the small time we viewed it, as we could not just stop our vehicle on the bridge. There was absolutely nothing else around it or attached to it so it makes no sense as to how it could just be hovering thousands of feet in the air. Far too large to be a drone.