Thurston, Washington Speed Traps
WA State Patrol parks cars on the Onramp directly before the Weigh Station. Airplane, LIDAR and Laser are all in effect here and is most likely effective from Lacey to So. Tacoma.
Also, South Bound I-5, when approaching the weigh station past Fort Lewis, you will see an Onramp that is perched up pretty high as it falls down onto I-5, Troopers are known to hide there at night as well.
And Between Lacey and McChord. WSP makes good use of the Overpasses as they hide behind the signs posted on them for good cover.