For purposes of this section, an “immediate threat” exists if any meat, seafood, poultry, vegetable, fruit, or any other perishable substance that is intended for consumption as food: Contains any filthy, decomposed, or putrid substance; Is poisonous or otherwise would be injurious to health if consumed; or Is otherwise unsafe. If a food poses an immediate threat, it shall be considered a public nuisance. If the Secretary finds that a food poses an immediate threat, the Secretary immediately shall destroy the food or otherwise make the food unusable for consumption by human beings. The owner of a substance that is destroyed or otherwise made unusable under this section may bring a suit for damages against the Secretary. The Secretary shall have the immunity from liability described under § 5–633 of the Courts Article.