Every amendment to this chapter, including any map incorporated therein, adopted in accordance with the Town Law shall be entered in the minutes of the Town Board and a copy thereof, exclusive of any map incorporated therein, shall be published once in the official newspaper of the Town of Hurley and a copy of such amendment, together with a copy of any map incorporated therein, shall be posted on a sign board maintained by the Town Clerk pursuant to Subdivision 6 of § 30 of the Town Law. Affidavits of the publication and posting thereof shall be filed with the Town Clerk.