You've been warned.

Speeding Crackdown Starts Friday In Washington
Posted: 10:40 am PDT April 7, 2010

SEATTLE -- The Washington State Traffic Commission is announcing a statewide campaign against speeders called "Slow Down or Pay Up."

Police and Washington State Patrol officials will discuss details Thursday at a news conference in Seattle.

Extra patrols will start Friday as part of a state traffic safety plan.

The commission says speeding is one of the three leading causes of traffic fatalities on Washington roads, along with impaired driving and not using a seatbelt. And speeding is a leading killer of teens.