Driving to work today I started getting a strong and clear laser warning from the rear. It then persisted for the next 20 minutes with only small interruptions. This can't possibly be correct as I turned down many side streets etc.. I also tried turning the unit on and off to no-avail. I will be calling customer service later today, I have had my unit for just about a year (give or take a few weeks)...will this cause an issue with my warranty? Do you guys know what error this is?