In the event any retail food store or wholesale food concern that has been disqualified under subsection (a) is sold or the ownership thereof is otherwise transferred to a purchaser or transferee, the person or persons who sell or otherwise transfer ownership of the retail food store or wholesale food concern shall be subjected to a civil penalty in an amount established by the Secretary through regulations to reflect that portion of the disqualification period that has not yet expired. If the retail food store or wholesale food concern has been disqualified permanently, the civil penalty shall be double the penalty for a ten-year disqualification period, as calculated under regulations issued by the Secretary. The disqualification period imposed under subsection (b) shall continue in effect as to the person or persons who sell or otherwise transfer ownership of the retail food store or wholesale food concern notwithstanding the imposition of a civil penalty under this subsection.