Any drive-through restaurant or other drive-through which is contiguous
to a residential zone must maintain at least a fifty-foot buffer between the
residential zone and any component of the drive-through such as, but not limited
to, menu boards, voice boxes, sound machines, and windows where food or money
is dispensed or collected. The driveway to the drive-through may be maintained
in the fifty-foot setback, but a least a twenty-five-foot landscaped buffer
must be maintained between the driveway and the residential zone.