We've all seen them...
You're driving somewhere and suddenly a car in the opposite lane flashes their lights at you to warn you that there's a police officer hiding up ahead lying in wait to catch a speeding motorist. Sure enough, a mile ahead... there he is. You decide to do likewise, so you flash you lights to oncoming motorists so they don't get caught either.
YOU MAY BE WARNING DANGEROUS CRIMINALS AND HELPING THEM TO ESCAPE DETECTION AND CAPTURE.
Hundreds of criminals - murderers, drug smugglers, pedophiles, and others with felony warrants are captured every year for simple traffic violations such as speeding, running stop signs, etc. How many have gotten away because someone warned them that there was a cop ahead?
Please think about that the next time you pass a police officer lying in wait to catch a speeder. The person you warn up ahead could turn out to be someone else's worst nightmare down the road!