The commissioner, after notice and hearing pursuant to RSA 541-A, may impose an administrative fine not to exceed $2,000 for each offense upon any person who violates any provision of this chapter, including any rule adopted under the provisions of this chapter. Rehearings and appeals from a decision of the commissioner under this section shall be in accordance with RSA 541. Any administrative fine imposed under this section shall not preclude the imposition of further penalties under this chapter. The commissioner shall adopt rules, under RSA 541-A, relative to:
I. A schedule of administrative fines which may be imposed under this section for violations of this chapter as provided above.
II. Procedures for notice and hearing prior to the imposition of an administrative fine.