In Spain, if a car coming down the opposite direction blinks his headlights at you, it usually means either “you left your lights on after the tunnel” or “hey you, turn the freaking lights on!”
If the car is red, with white lettering that reads POLICIA FORAL, and the light they switch on for a moment is that blue one on top of the car with the accompanying soundtrack, I do hope what they mean is “kiss your license goodbye cos it just did like Custer at Little Big Horn.”
I also do hope that the moron in the convertible Beemer who chose to pass four cars at a time just as a curve was coming up and who managed to avoid a head-on collision with the cops by narrowly inserting himself between the front two of those four cars while the cops braked gets hemorroids the size of a Mack truck, on account of the heart-health test he gave to everybody at the scene.