If any part or provision of these regulations, or application thereof, to any person or circumstance is adjudged invalid by any court of competent jurisdiction, such judgment shall be confined in its operation to the part, provision, or application directly involved in the controversy in which such judgment shall have been rendered and shall not affect or impair the validity of the remainder of these regulations or the application thereof to other persons or circumstances. The commissioners court hereby declares that it would have enacted the remainder of these regulations without any such part, provision or application.