There is a eye in the sky. Beware on clear days. 5-20 miles east of Ritzville. There are rock plateau's that separate the lanes that police hide behind. Don't push it in this area.
Laser is used at very close range.
Friday and Saturday nights are guaranteed to have bears there. On those two nights I recommend keeping your speed incheck all the way to Spokane. Radar is sometimes used by the exit ramp heading west. I90 George to Vantage. Concert nights are the main times radar is used.