Any person who sells agricultural products of the United States in any chartered city or town of this state has a privilege thereon to secure the payment of the purchase money for five days after the day of delivery, within which time the vendor may seize the same in whatever hands or place it may be found, and his claim for the purchase money has preference over any warehouse privilege or claim for warehouse charges, or any privilege or claim by the holder of any warehouse receipt. If the vendor gives a written order for the delivery of any such produce and says therein that it is to be delivered without vendor's privilege, then no privilege attaches thereto.
La. R.S. § 9:4541