The provisions of this chapter shall not apply with respect to:
(1) Any insurance company licensed to do business in the District;
(2) Any banking institution, trust, loan, mortgage, safe deposit, or title company, building association, credit union, moneylenders, or common trust fund authorized to do business in the District;
(3) The inclusion of a charge for insurance in connection with an installment sale of a motor vehicle make in accordance with Chapter 6 of Title 50; or
(4) The financing of insurance premiums in the District in accordance with the provisions of §§ 28-3301 and 28-3302 relating to rates of interest.