In case of emergency, when down timber, parts of trees or brush, within two hundred feet of any highway, creates an unusual fire hazard that may endanger life or property, the State Forest Fire Warden, with the written consent or at the written direction of the governor, may enter upon such property and remove or reduce such abnormal fire hazard with such labor or funds as may be available; provided a copy of such consent or order shall have been published on two consecutive days in a newspaper having a circulation in the area described therein. No action for trespass shall lie against the State Forest Fire Warden or any of his agents by reason of any act for the purpose of reducing such hazard.