Caught this today on Highway 2 just out of Wenatchee. WSP had their aircraft up to catch speeders in the 60mph section of Hwy 2. Apparently there was a "DRE" drug recognition expert conference up in Lake Chelan today- so the WSP plane caught several marked and unmarked (and a motorcycle) doing well above the speed limit (26mph over in at least once case)
The aircraft stopped calling out the speeds until ground units would confirm they were or were not a police car. If they were a police car they didn't get stopped.