This has never happened to me. I was driving down a relatively quiet road when a LEO pulled out behind me. I got a constant full K band alert then it cycled between full K band to Laser back and forth in intervals of about 2 seconds from the rear for the whole time he was following me which was about 2 miles. After passing me I just got a weak K band alert. Just curious if this has happened to anyone else and can anyone give me an explanation for this.