Minnesota Statutes Transportation (Ch. 160-174A) § 169.073. Prohibited light or signal

(a) No person or corporation shall place, maintain or display any red light or red sign, signal, or lighting device or maintain it in view of any highway or any line of railroad on or over which trains are operated in such a way as to interfere with the effectiveness or efficiency of any highway traffic-control device or signals or devices used in the operation of a railroad. Upon written notice from the commissioner of transportation, a person or corporation maintaining or owning or displaying a prohibited light shall promptly remove it, or change the color of it to some other color than red. Where a prohibited light or sign interferes with the effectiveness or efficiency of the signals or devices used in the operation of a railroad, the Department of Transportation may cause the removal of it and the department may issue notices and orders for its removal. The department shall proceed as provided in sections 216.13, 216.14, 216.15, 216.16, and 216.17, with a right of appeal to the aggrieved party in accordance with chapter 14.

(b) No person or corporation shall maintain or display any light after written notice from the commissioner of transportation that the light constitutes a traffic hazard and that the commissioner has ordered the removal thereof.