R.I. Gen. Laws § 31-28-4: Exemption of persons with disabilities from payment of fees.

No city or town or any agency of a city or town shall exact any fee for parking on the public highways or in any metered parking space from any person who has been issued a disability parking privilege placard or sticker pursuant to § 31-28-7, 31-28-7.1 or 31-29-5, nor from the owner of the motor vehicle transporting the person with a disability, provided that upon which vehicle there is displayed any disability parking placard or sticker that shall be issued by the division of motor vehicles.