Paige Aiello was last seen at her family's home in Hillsborough on April 9. The 22-year-old College of New Jersey senior apparently took her mother's car without permission.
The car was found the next day in New Brunswick parked near a train station. A passer-by reported finding Aiello's purse, cellphone and car keys on the south walkway of the George Washington Bridge.
Aiello's father told The Times of Trenton video showed his daughter walking out of Penn Station in the direction of the bridge.
Volunteers plan to distribute flyers outside New York's Penn Station on Saturday and her family is offering an undisclosed reward.