Black disc with blue dotted flashing lights hovering near our car on interstate 80

Me and my three friends were driving home from wendover Nevada, back to salt lake and my friend in the passenger seat looked up and saw a black disk hovering to the right of our car, not too high in the sky. It was about the size of a car maybe? We couldn’t tell the size of how far away exactly but it seemed fairly close to us. It was definitely a disc shape and it had little blue dots around it. It hovered there flashing for about 5-10 seconds, enough time for me and my two friends to clearly see the shape of it and the detail. After looking at it hover above us for a good 5-10 seconds it quickly zoomed up in the sky and zoomed away in the blink of an eye. We are all 100% sure we saw a ufo and cannot think of any other explanation of what it could have been. The only other thing it could have been was a drone but we don’t know why someone would be flying a drone in the middle of no where on the freeway in a ghost town.