N.J. Stat. § 56:3-45: Emptying and taking possession of cans unlawfully used

Any can or cans mentioned in section 56:3-42 of this title, full or partly full of milk or cream, used in violation of the provisions of this article, may be emptied of their contents by the owner, dealer or shipper, or his agent, and taken possession of by any of such several parties, without being liable in damages therefor, upon first giving notice to the person having the possession of such can or cans to empty the same.