The judge may permit the temporary removal hearing or the adjudicatory hearing to go forward when one parent has not been served, if it is established on the record that Petitioner has made diligent efforts to serve all other parties in time to permit them to prepare for and participate in the hearing, including initiating contact with the Child Support Division of the County Attorney's Office in an attempt to locate any absent parent or other measures in compliance with statutory requirements. The Petitioner shall make continuing diligent efforts after the hearing to locale and notify all persons who were not served. If the second parent or persons exercising custodial control or supervision has not been served with the petition prior to a hearing but subsequently notified of the proceedings, the Court shall hear the matter, giving preference to statutory actions seeking entitlement of custody.