The district classification of the territory within the incorporated Town of Rock Hall shall be as shown on the map designated as the "Zoning District Map, Rock Hall, Maryland," dated, signed by the Mayor and attested by the Town Clerk upon adoption. This Zoning District Map and all notations, dimensions, references and symbols shown thereon pertaining to such districts shall be as much a part of this chapter as if fully described herein and shall be filed as part of this chapter by the Town Clerk. Said map shall be available for public inspection in the office of the Town Clerk. Said map shall be marked "Original copy, not to be altered or removed from the office of the Town Clerk except on court supoena." This map, together with subsequent applicable amendments, shall be conclusive as to the current zoning status of land.