All established open parking areas shall be completely surfaced with crushed rock of at least three-quarter-inch size to minimize the generation of dust from vehicular traffic or surfaced or paved with a permanent, dust-free pavement of either concrete or hot-mix or cold-mix asphalt. Ingress and egress shall be only by way of paved driveways or openings, not exceeding twenty-five (25) feet in width, and such driveways or openings shall be surfaced or paved in the same manner as the established open parking areas. No parking shall be permitted within six (6) feet of an adjoining lot located in a District "R-1" to "R-3," inclusive. Any lights used to illuminate such parking area shall be so arranged as to direct the light away from any adjoining premises located in a District "R-1" to "R-3," inclusive. Where such parking area is located in a District "R-1" to "R-3," inclusive, no signs of any kind shall be erected, except those that are necessary for orderly parking thereon. Where such parking area is located in a District "R-1" to "R-3," no fee shall be charged for parking thereon.