N.J. Stat. § 2A:44-29
If no proceedings are taken for the repossession of the motor vehicle or part thereof by the motor vehicle owner or person entitled to possession of the motor vehicle, such property so held by the garage keeper shall, after the expiration of not less than 30 days from the date of the detention, be sold at public auction, subject to any prior lien, title or interest held by virtue of a prior conditional sale or a prior chattel mortgage properly recorded. If an action has been brought under N.J.S. 2A:44-26 and the court has ordered payment of money to the garage keeper, the garage keeper shall, upon payment to the garage keeper in cash or by certified or cashier's check of the amount ordered by the court, surrender the motor vehicle or part thereof immediately. If the amount in the court order has not been paid in accordance with this act within 15 days from the date of the order, the property held by the garage keeper may then be sold at public auction, subject to any prior lien, title or interest held by virtue of a prior conditional sale or a prior chattel mortgage properly recorded.
N.J.S. § 2A:44-29