Neither do most pedestrians. Let's be real, most Washingtonians don't know most of the traffic laws. This state really badly needs better education in that sense.
Most people also don't know that you're not supposed to enter a crosswalk when the "DONT WALK/red person" is blinking, or the countdown timer is running. It is supposed to be treated like a yellow. Finish crossing the street, but do not enter the crosswalk. Though I suppose that stepping on the gas is how drivers treat a yellow also!
