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.
Police line up from time to time at the entrance ramp.
They use a bear in the air. 8-0 miles before and after Cashmere. For years this is the heaviest speed trap I have ever seen. There is always at least one car pulled over day and night. What else but a eye in the sky.