To protect the City from any losses on account of travel expense advances, the City shall have a prior lien against and a right to withhold any and all funds payable or to become payable by the City to any official or employee to whom such advance has been given up to the amount of such advance and interest at the rate of ten percent per year until such time as repayment or justification has been made. No further travel expense advance of any kind may be made to any official or employee at any time when such official or employee is delinquent in accounting for or repaying a prior advance. (Ord. 685 § 5, 1975).