A.(1) The provisions of R.S. 32:361.1 do not apply to a motor vehicle registered in this state where the registered owner, spouse or family member operating or authorized to operate the motor vehicle has an affidavit signed by an optometrist or physician, including but not limited to an ophthalmologist or dermatologist licensed to practice in this state stating that such person has a physical or medical condition involving the effects of the sun that makes it necessary to equip the motor vehicle with sun screening material which would be of a light transmission or luminous reflectance in violation of R.S. 32:361.1. A copy of the affidavit shall be kept in the motor vehicle at all times.
