In West Baton Rouge Parish on HWY 190 my R3 picked up a Ka band and about a mile ahead I saw what I thought at first was a state trooper in a Tahoe... but as I got closer I realized it was a white Escalade with what appeared to be civilian plates (tan-ish plate with pelican). LEO was using radar gun out of the driver side window. I didn't see him pull anyone over, but is it common for LEOs to use what appears like off-duty vehicles?? Obviously you'll see unmarked cars all the time, but those are typically still fleet vehicles of some kind, not luxury SUVs, right?? It couldn't have been a department-owned vehicle... unless they really are brining in that much money from tickets. Never seen anything like it anywhere else in Louisiana.