Sec. 3. CONFLICT OF CLAIMS OR BOUNDARIES. In the event of any conflict or claim of conflict between the boundaries of the tract of land described in such patent and the boundaries or claimed boundaries of previously validly titled land owned or claimed by private persons, the City of Corpus Christi is hereby authorized in its own behalf and as agent for the State of Texas to take proper action to resolve such conflict or claim of conflict, without cost or expense, however, to the State of Texas. Without limiting the authority of said City otherwise herein granted or which it has by reason of its ownership, said City is hereby authorized to file suit in the name of the State of Texas to secure a judicial determination of said boundaries; and said City is further authorized to establish the boundaries between the tract covered by said patent and any adjoining private owner or claimant by agreement, which boundary agreement or agreements shall be set forth in writing and shall be effective when approved by ordinance of said City adopted for such purpose. In the event of any change in the boundaries of said tract as a result of judicial decree or by agreement in accordance herewith, corrected field notes of said tract shall be filed in the General Land Office and a corrected patent shall be issued to the City of Corpus Christi, its successors and assigns, subject to the provisions of this Act.