Whenever the director shall find, or shall have probable cause to believe, that an article subject to this chapter is in intrastate commerce in violation of this chapter, and that its embargo under this section is required to protect the consuming or purchasing public, due to its being adulterated or misbranded, or to otherwise protect the public from injury, or possible injury, he or she is hereby authorized to affix to such article a notice of its embargo and against its sale in intrastate commerce, without permission given under this chapter. But if, after such article has been so embargoed, the director shall find that such article does not involve a violation of this chapter, such embargo shall be forthwith removed.