He flipped off the woman and yelled a derogatory name as he crossed a Tacoma street in front of her car.
The woman told him to shut up. He told her to pull over.
When she did so, the man walked to her window and allegedly pulled a knife, threatening to cut her throat.
The woman’s husband and two children were in the car at the time. She drove off and called police.
Officers found the 39-year-old man inside a grocery store on 72nd Street. He admitted getting into an argument with a woman who almost hit him but denied having a weapon.
He told police the woman came at him.
After he was arrested, officers found a small knife on a cord around the man’s neck. Pierce County prosecutors said they are unsure if it was the same knife used in the confrontation on the side of the road.
The man has pleaded not guilty to felony harassment. Bail was set at $5,000.