We've all done it. You see a cop working a stretch of road, and you flicker your bright lights to signal to other motorists that they are approaching a cop.
Police officers are not idiots. We normally work in zones, which is to say that I might be working Highway 28 east of the airport and my buddy might be working the same stretch of road, west of the airport. There is plenty to do, usually, in both zones, and occasionally one of us will set up on the side of the road to be seen by traffic while we do paperwork. The radio traffic keeps us pretty much informed about where the other is working.
Lets say I an working close to my zone boundary and I see a car approaching, lights flashing. The motorist is trying to tell me that I am approaching a cop. I know that. Yet, it irks me, so I turn around and make a traffic stop. The conversation might go like this.
Me: "Ma'am, I pulled you over because your headlights were flashing and I'm concerned that there might be some problem with your lighting equipment. Do you have any idea why your bright lights were flashing like that? I need to see your license, registration, and proof of insurance."
She: "Why no, Officer. I really can't explain that." As she digs in the glove box for the registration.
Me: "Part of my job, ma'am, is to help you stay safe on the road. Lets conduct a little inspection, please. Turn on your bright lights, please. Thank you. Now, your dims? Lets look at your blinkers. Thanks. Now, step on your brake pedal. Very good."
She" "Officer, I really don't have any idea what the problem might have been."
Me: "Me either, Ma'am. Everthing seems to be working properly now. You might want to have your mechanic look at it, first chance you get."
She: "I'll do that, officer, first thing tomorrow."
Me: "You drive carefully, and have a nice evening."
I will probably have to explain myself to Saint Peter, one of these days.