It is unlawful for the state of North Dakota, its political subdivisions, counties, cities, and the state department of transportation to establish and maintain any mechanical device or devices known as “parking meters”, or by whatever name designated, requiring the deposit therein of coins or tokens for the privilege of parking cars or other vehicles upon the streets and highways in the state of North Dakota. Any and all ordinances and resolutions now existing authorizing the establishment and maintenance of such mechanical devices or parking meters, or by whatever name designated, are hereby declared null and void.