The City of Grand Island zoning and property use regulations, building ordinances, gas ordinances, and plumbing ordinances are hereby extended and apply to the area two miles beyond and adjacent to the corporate boundaries of the City of Grand Island with the same force and effect as if such outlying area were within the corporate limits of such city; provided, no such ordinance shall be extended or applied so as to prohibit, prevent, or interfere with the conduct of existing farming, livestock operations, businesses, or industry.