A city may submit to the attorney general of the state any bonds to be issued hereunder after all proceedings for the issuance of such bonds have been taken. Upon the submission of such proceedings to the attorney general, it shall be the duty of the attorney general to examine into and pass upon the validity of such bonds and the regularity of all proceedings in connection therewith. If such bonds and proceedings conform to the provisions of the Municipal Parking Law, and are otherwise regular in form, and if such bonds when delivered and paid for will constitute binding and legal obligations enforceable according to the terms thereof, the attorney general shall certify in substance that such bonds are issued in accordance with the constitution and laws of the state of New Mexico.