5.2      Proof of service - Proof of service of all pleadings and other papers required or permitted to be served shall be filed promptly after service and may be made by written acknowledgment of service, by affidavit of the person making service or by written certification of counsel. Proof of service shall state the date and manner of service. Proof of service is unnecessary for documents filed and served electronically under LCivR 5.7(i).