At night, by roadside like the previous post, but with one important addition. They were using a drone in conjunction. A small craft shot straight up over a hill, crossed the road, and passed at about 20 or 30mph. When i looked back from pasenger side, i saw 2w side by side props that glowed around the circumference. A few seconds later, passed the cop in the dark. If you dont believe, google drones and ft sumner. Big airbase, testing drones.