All permits issued by the Director of Public Properties shall be subject to the park rules and regulations and City ordinances. The persons to whom such permits are issued shall be bound by the rules, regulations and ordinances as fully as though the same were inserted in such permits. Any person to whom such permits are issued shall be liable for any loss, damage or injury sustained by any person whatever, by reason of the negligence of the person to whom such permits are issued, as well as for any breach of such rules, regulations and ordinances, to the person so suffering damages or injury.