The Supervisor of Highways, at the request and direction of the Chief of Police, may temporarily establish a zone of quiet upon any street where a person is seriously ill.
Said temporary zone shall embrace all the area within a radius of 200 feet of the building, occupied by the sick person.
Said temporary zone or zones of quiet shall be designated by the Chief of Police, by placing at a conspicuous place in the street a sign or marker bearing the legend or phrase: "Zone of Quiet."