It happened shortly after noon Wednesday in the 1700 block of Tustin Street.
According to police, two black males in a Pontiac cut off another vehicle with a couple inside.
Words were exchanged between the drivers, police say. The passenger of the Pontiac got out and spit on the other driver, then left.
But then, about a quarter mile away, the couple encountered that Pontiac again.
"They saw the car again and this time the driver was waving a gun. They stopped in fear, and the driver then fired a shot directly at them," said Lt. Denis Rosenbaum.
No one was hit.
The suspect vehicle is described as a gray, four-door, 2004-2008 Pontiac Grand Prix with tinted windows, a moonroof, and five-spoke wheels.
Anyone with information is asked to contact Philadelphia police.
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