Well, I haven't installed my V1 yet but if we find that our accident avoidenc sensor is triggering a false V1 reading, there is a way to program the V1 to shut off or mute any band (and some other customizable things in the V1). To learn how to enter the V1 programming mode follow this link: valentineone.com/Lab/TechReport3.asp but you're on your own if you shut something off and get a ticket so consider each of the settings carefully before you make a change. There is also a way to easily return it to the factory settings.
My dad was following me and he said his was going off constantly. I haven't mounted mine yet, but I plugged it in and held it with no probs. In the past, I have had cell phones set it off. I'm still experimenting before I mount it. Keep us posted. The reason I haven't mounted it yet was because it was setting off my dads.