Notwithstanding any provision in this chapter to the contrary, if any of the municipalities of Folsom, Isleton or Galt fail to enact the provisions of this chapter on or before December 9, 1981, the geographical territory within the limits of any such municipality shall be deemed to be excluded from any franchise area and service area established by or under this chapter, there shall be no opportunity to offer Galt as a proposed service area as otherwise authorized by Section 5.28.920 of this chapter should Galt fail to enact this chapter by December 9, 1981, and any and all other provisions of this chapter which impose or confer a right, privilege, duty or limitation upon any such municipality per se or as included within the definition of "cities" shall be deemed to be ineffective and null and void. (Prior code § 20.01.056)