All semipermanent freestanding coin drink-vending machines, not to exceed two, used by any person enumerated in § 118.20 shall be placed upon the sidewalk but not in front of any business structure and not to extend a distance exceeding 45 inches from the side of the business structure onto and over the sidewalk; provided that five feet of sidewalk must remain unobstructed for pedestrian use, with said five feet commencing at the curb line and extending toward the front of the business structure. Further, the owner or operator of the machine shall first comply with § 118.20. The temporary opening of any door or other aperture in the vending machine, when the door or aperture would extend beyond the 45 inches provided for herein, shall not constitute a violation of this subchapter. So much of this subchapter as requires removal of displays of merchandise at the end of the business day shall not be applicable to vending machines.