R.I. Gen. Laws § 6-27-9

(a) Except where a customer has been clearly informed by either a poster or other appropriate notice placed at the point of display or at the cash register or at the store entrance that all sales are final and that the merchandise is not returnable, wherever a customer who has paid cash for an item, and who has in his or her possession a sales slip or other evidence that he or she has purchased the item in a retail outlet, returns the item, unused, within ten (10) business days from the date of purchase, he or she shall be entitled to a refund in the same manner as paid in an amount equivalent to that paid at the time of sale.

(b) This section shall not apply to the sale of books, magazines, or any publications; food; perishable items; merchandise that is substantially custom-made or custom-finished; items for internal consumption; items sold €œas is€; or any items presently prohibited for refund, return, or exchange by a retailer by federal or state law or any rule or regulation promulgated by any state agency.

(c) Any person, corporation, or entity, refusing or neglecting to post in accordance with subsection (a), shall be deemed guilty of a misdemeanor for each violation and shall be punished by a fine of not less than five hundred dollars ($500) or more than one thousand dollars ($1,000).