It happened along the 300 block of South Black Horse Pike in Blackwood, New Jersey.
Surveillance video from outside the El Manantial Store shows the suspect getting out of his car and running up to the driver before shoving a gun in his face.
The victim turned over his money and the suspect took off in his car.
Anyone with information about the suspect or the silver 4-door Buick is asked to call Gloucester Township Police.
