A civil penalty of not more than $500 may be assessed by the Department against any person who violates any provision of this chapter. In determining the amount of the penalty, the Department shall consider the degree and extent of harm caused by the violation. No civil penalty may be assessed under this section unless the person has been given the opportunity for a hearing pursuant to the Administrative Process Act, (§ 2.2-4000 et seq.). Any continuing failure to notify under § 2.2-5503 shall constitute the same offense for purposes of imposing the penalty authorized by this section.