In the event that such organization shall fail to maintain the open space in reasonable order and condition, the Planning Board may serve written notice upon such organization or upon the owners of the development setting forth the manner in which the organization has failed to maintain the open space in reasonable condition, and said notice shall include a demand that such deficiencies of maintenance be cured within 35 days thereof, and shall state the date and place of a hearing thereon which shall be held within 15 days of the notice. At such hearing, the Planning Board may modify the terms of the original notice as to deficiencies and may give a reasonable extension of time not to exceed 65 days within which they may be cured. If the deficiencies set forth in the original notice or in the modification thereof shall not be cured within said 35 days or any permitted extension thereof, the Township, in order to preserve the open space and maintain the same for a period of one year, may enter upon and maintain such land. Said entry and maintenance shall not vest in the public any rights to use the open space except when the same is voluntarily dedicated to the public by the owners. Before the expiration of said year, the Planning Board shall, upon its initiative or upon the request of the organization theretofore responsible for the maintenance of the open space, call a public hearing upon 15 days' written notice to such organization and the owners of the development, to be held by the Planning Board at which hearing such organization and the owners of the development shall show cause why such maintenance by the Township shall not, at the election of the Township, continue for a succeeding year. If the Planning Board shall determine that such organization is ready and able to maintain said open space in reasonable condition, the Township shall cease to maintain said open space at the end of said year. If the Planning Board shall determine such organization is not ready and able to maintain said open space in a reasonable condition, the Township may, at its discretion, continue to maintain said open space during the next succeeding year, subject to a similar hearing and determination, in each year thereafter. The decision of the Planning Board in any case shall constitute a final administrative decision subject to judicial review.