N.J. Stat. § 48:12-124
The company referred to in section 48:12-123 of this title shall have a lien upon the property or so much thereof as has not been taken for the charges for such detention and use.
Where a claim made by any railroad company for such charges is disputed, the consignee or owner or the agent of either shall be entitled to delivery of the property free from any lien or claim for such charge, on giving to the company a bond with sufficient surety in double the amount of the disputed charge, in no case however to be less than fifty dollars, conditioned for the payment of such sum as shall be found due, by agreement of the parties or by judgment of any court in a suit for the same, with costs. By agreement signed by both principal and surety, any such bond may be extended or continued to cover other disputed demurrage charges claimed thereafter.
N.J.S. § 48:12-124