For those who are familiar with my recent "incident" I thought I'd post some interesting information. I've seen this question posted somewhere around here a while ago and I don't believe there was a concrete answer. My insurer is USAA and while I can't speak for all other insurers I'm pretty sure you wouldn't see any different with any other company as USAA is pretty great about covering almost everything and with service in general since they only cover U.S. Military members and their families.
I was told that under part D of my contract "any device used to evade law enforcement" is listed as an exclusion. This includes radar detectors and laser jammers. I tried the whole "parking sensor" thing....that didn't fly. They said the "primary use" of such was as a laser jammer, though it could be used only as a parking sensor. Basically if you have a remote RD or a jammer and get your front end messed up, you're S.O.L.
Really makes me think twice about if I want to spend such a large amount of money on something that can so easily be taken away from me.