Witness Account

I'm not sure when it was exactly, but my husband was driving me to work when I looked out the drivers window I saw a silver disk shape U.F.O. I didn't report it, but was fascinated by what I saw, but then it scared me since I felte that they could take over earth immediately if they wanted. It was just a blink of my eye it was gone nowhere to be seen. I did see like a small very small black mist leave the UFO just as it disappeared.