I put the V1 in 'A' mode to try it out.
I turned onto a hilly road and soon got a strong Ka bogey signal from behind. I checked my mirror for a cop car and then continued driving. All I could see back there was a beige minivan. Then, every time I'd go over a hill the signal would disappear. Every time I could see the minivan the V1 would go nuts. Eventually, I pulled up to a stop sign and the Honda minivan stopped right behind me. The V1 went crazy.
Did this guy have a radar-based cruise control? I know he couldn't have been using it, so it must still shoot radar even when stopped.
What's the deal?