A person who fails to file a properly completed and certified report within the time required by this chapter is subject to a civil penalty of not more than $10 a day for each day the delinquency continues as the commission determines subject to appeal to the superior court. An affidavit stating facts in mitigation may be submitted to the commission by a person against whom a civil penalty is assessed. However, the imposition of the penalties prescribed in this section or in AS 39.50.060 - 39.50.130 does not excuse that person from filing reports required by this chapter.