The several administrative offices of state and municipal governments may remain closed on any Saturday or Saturdays by executive order of the governor in the case of state administrative government and in the case of a municipal government by the adoption of a resolution by the municipal council. Any Saturday when the several administrative offices of state, city, and town governments, or any branch, division, or independent agency of the state or municipality shall remain closed pursuant to the provisions of this section shall, with respect to the closed administrative office, branch, division, or independent agency of the state or municipality be a holiday for the purpose of chapter 3 of Title 6A. If any state or municipal administrative offices, or any branch, division, or independent agency of the state or municipality shall close on any Saturday pursuant to the provisions of this section, any act which would be required to be performed on any Saturday at or by the administrative office, or any branch, division, or independent agency, of the state or municipality, if the administrative office, branch, division, or independent agency of the state or municipality were not closed, shall be performed on the next succeeding business day, and any act which would be authorized or permitted to be performed on any Saturday at or by the administrative office, or any branch, division, or independent agency of the state or municipality if the administrative office, branch, division, or independent agency were not closed, may be performed on the next succeeding business day. No liability or loss of rights of any kind shall result from the failure to perform any of those acts while closed on any Saturday.