Except for unpaved parking areas and entry areas, all uses in the FAIR zone shall be screened from adjacent properties not lying within the FAIR zone, and from rights-of-way, by an exterior wall, a sight-obscuring hedge or vegetative screen, a minimum six-foot-high sight-obscuring fence, or a combination of buildings, fences and vegetation. A waiver of this requirement may be granted by the planning director upon finding that:
(i) Screening would result in a substantial security or safety hazard; and
(ii) The lack of screening will not be substantially detrimental to the use or enjoyment of adjacent properties.