On my way home yesterday, I saw an unmarked, black Suburban with 3x antennas on the roof, small lights on the rear license plate, and lights on the inside near the sun visor. I do not know if he had a radar gun as my RD was not picking anything up. He got on Hwy 16 going west from Capital Dr. I do not know if he was part of Pewaukee, Waukesha County, or WSP.