The Kansas highway patrol superintendent or a division captain may on proper application, as hereinafter enumerated, grant to military personnel or state national guardsmen of this state or any other state authority to direct or regulate traffic upon the streets, roads and highways within the state of Kansas when military vehicles or convoys, or the private vehicles of such military personnel and national guardsmen being operated while reporting for or departing from duty may affect the safety of persons and property upon and using such streets, roads and highways.