She and her two daughters were in the car when the teen allegedly entered the vehicle and drove off with them still inside.
The woman said after the incident that what happened had left them shaken, scared and worried about their safety.
Inspector Wayne Kitcher earlier said the incident happened after a member of the public had filled up his vehicle at a petrol station on Dominion Rd.
“When he went inside to pay, an offender got inside the vehicle and drove off with two other occupants who were still inside,” Kitcher said.
“The offender let the people exit the car a short time later before fleeing again, and the occupants walked back to the petrol station.”