(a) Nothing in this Chapter 41A may be construed to supersede any other lawfully enacted ordinance of the City and County of San Francisco.
(b) Clauses of this Chapter 41A are declared to be severable and if any provision or clause of this Chapter 41A or the application thereof is held to be unconstitutional or to be otherwise invalid by any court of competent jurisdiction, such invalidity shall not affect other provisions of this Chapter 41A.