La. R.S. 3:2436

After the animal has been cared for and treated the owner of the stable as well as the veterinarian treating the animal shall notify the president of the society by sending a statement of their charges, and the president of the society shall cause a registered notice to be sent to the owner of the animal, apprising him of the fact that the animal is ready to resume service and advising him as to the amount of the charges. Should the owner not take the animal and pay the charges within five days after the receipt of the notice, the society may sell the animal at public auction in the manner now provided by law for judicial sales; the excess of the charges and expenses shall go to the owner of the animal.