If any section, subsection, sentence, clause, phrase, or portion of this chapter is for any reason held invalid or unconstitutional by any court or administrative agency of competent jurisdiction, such portion shall be deemed a separate, distinct, and independent provision and such holding shall not affect the validity of the remaining portions thereof. If a regulatory body or a court of competent jurisdiction should determine by a final, non-appealable order that any registration or permit issued under this chapter or any portions thereof is illegal or unenforceable, any such registration or permit granted or deemed to exist under this chapter shall be considered as a revocable registration or permit, terminable by either party without cause upon giving 60 days’ written notice to the other party. The requirements and conditions of such a revocable registration or permit shall be the same requirements and conditions as set forth in the registration or permit, respectively, except for conditions relating to the term of the permit and the right of termination. If a registration or permit shall be considered revocable as provided in this chapter, the registrant or permittee must acknowledge the authority of the City Council to issue such revocable registration or permit and the power to revoke it.