The unknown man approached Sara Reed in the driveway of her home in Endeavour Hills about 6.30am.
Her husband said she was warming up the car when the man jumped into the driver’s seat.
“Within a minute or two, the car was backed out of the driveway,” he said.
“He got spooked when he saw me and swerved the car into the fence.”
“He got stuck. I told him to get out, and he got out casually and threw something in my face and said ‘f— you’.”
The man fled the scene on foot towards Power Road.
No one was physically injured during the incident, but the pair have been left shaken. 
“I just thought ‘Oh my god’. I was shocked, I didn’t know what to do,” Sarah said.
“I believe he was watching me get out of the car. It happened very quickly.”
Police describe the man as in his 20s, with a dark complexion and wearing a black/grey hoody.