The Black Triangular Shape

Derek: I was picking my now wife up from work, and this would have taken place in the fall. As we're getting off on the exit, we can see a completely black triangular shape,. very large in front of us, and above us by about 50 feet. We don't really know what to do because we're on a highway. It's not like we can pull over. So we turn left and the craft is actually going in the same direction that we are. And then all of a sudden it just disappeared.