A man suspected of drunken driving had his keys confiscated by an off-duty Spokane County Sheriff's Deputy who witnessed the man trying to drive over some boulders near Liberty Park, according to court documents.

Wayne Pederson crashed his Toyota pickup near a trailhead at the park just south of Interstate 90 in Central Spokane earlier this week. A sheriff's deputy who was home at the time of the crash left his home to find Pederson trying to drive over a boulder that was blocking the trail, he told investigating officers.

Pederson then fell out of his truck, according to court documents. The deputy took Pederson's keys and called law enforcement, who arrived and conducted a sobriety test. The investigating officer listed Pederson's level of impairment as "obvious."

Pederson refused a breathalyzer and blood draw at the scene, according to court documents.

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