She believed he was trying to grab her car keys.
She drove away, turned around again, and then had to get around the man, who was standing in the middle of the road beside a 4WD vehicle.
She stopped to speak to the woman again and tell her to get in the car as White believed she was in trouble, but the woman again told her to go away.
As this was happening, the 4WD rammed the back of White's vehicle.
The woman said she sped away and the other car chased her for about five minutes.
Her passenger called police and they met officers at the Welcome Bay shops. The car stopped following them when they started reaching a more populated area.
Police said they had received two reports from people who said their vehicles had been rammed in the Welcome Bay Rd area about 12.45am on Sunday. Inquiries are continuing.