The incident started at around 4:00 p.m. near Costco. Police say two cars were turning left on 15th Street S. from S. Fern Street when, for some unknown reason, tempers flared and horns started beeping. The two vehicles, a 2008 Chevrolet Impala and a 2004 Mercedes-Benz S450, made the turn and pulled to the side of the 500 block of 15th Street S.
A 16-year-old juvenile and an adult got out of the Impala and started arguing with a man who got out of the Mercedes, according to Arlington County Police spokesman Dustin Sternbeck. The juvenile punched the Mercedes driver in the face, then both parties returned to the Impala, he said.