If a court determines that any clause, sentence, paragraph, subdivision, or part of this article, or the application thereof to any person, firm, or corporation or circumstance, is invalid or unconstitutional, the court's order or judgment shall not affect, impair, or invalidate the remainder of this article, but shall be confined in its operation to the clause, sentence, paragraph, subdivision, or part of this article, or in its application to the person, individual, firm, or corporation or circumstance directly involved in the controversy in which such judgment or order shall be rendered.