hall not displace any required parking: (i) electrical diagnostics; (ii) battery charging and changing; (iii) tire removal and replacement, provided the vehicle is not elevated more than 12 inches off the ground measured to the bottom of the tire. A portable hoist only, may be used for this purpose. (5) If the building is located within 50 feet of a lot in an A or R Zone with no intervening street, the wall of the building nearest such Zone shall have no openings other than doors or stationary windows. Such doors shall be permitted only if the building is adjacent to an alley and may be opened only at intervals necessary for ingress or egress. (6) Automotive hoists, of any type or size, except as provided in Paragraph (4)(iii) above or allowed and operated in an M2 or M3 Zone, shall be located or operated only inside a fully enclosed building. (b) All Used Vehicle Sales Areas shall comply with the following: (1) All used vehicle sales areas established after January 1, 2005, shall provide supplemental customer parking, on site, of at least one space for every 2,000 square feet of vehicle sales area. This parking is in addition to all other parking required for the lot and shall be conspicuously posted and used for customer parking only. There shall be a minimum of two customer parking spaces provided for any used vehicle sales area. (2) All repair work done on site must comply with the provisions of this subsection whether or not the repairs are done on customer or dealer owned vehicles. (3) All other provisions of the Code which apply to used vehicle sales must be complied with at all times. (4) Exception: Display of not more than three vehicles for purposes of sale or trade, at any one time, which is accessory to an approved use on the same lot and not occupying any required parking spaces, does not require a separate certificate of occupancy, additional parking, or annual inspection. (c) Nothing in this section shall relieve any person from complying with any applicable requirements contained in Sections 12.14, 80.73.1, 80.73.2 or any other provision of the Code. G. Transportation Demand Management and Trip Reduction Measures. 1. Definitions. For the purpose of this section, certain words and terms are defined as follows: Carpool. A vehicle carrying two to five persons to and from work on a regular schedule. Development.