"Milk products plant" means any place in which a person engages in the business of handling, receiving, manufacturing, freezing, processing, or packaging milk, or any product of milk or engages in the business of manufacturing, freezing, or processing imitation ice cream or imitation ice milk. "Milk products plant" does not include a properly licensed retail food facility that does either of the following:
Ca. Food and Agric. Code § 32513