I was driving west from Champaign to Springfield, Il this afternoon on I-72 and passed an old red pickup truck with a farmer Brown looking guy driving. I thought I saw a radar unit mounted to his dash and as soon as I passed him, I got a full blown K-band alert. As I-72 is pretty flat and straight, I continued getting the alert for 20 miles or so. I think he finally exited the highway.
1) Is it legal for anyone to mount and run a radar unit?
2) As my Escort 8500 was muted for that K-band alert, would it have alerted again for a real cop's K-band? I know if you mute an X-band signal and then get a K-band hit, the alert will still sound. But I'm not sure if it will sound for a like band signal.