R.I. Gen. Laws § 11-36-12: Profiteering on tickets.

No person shall resell or offer for resale a ticket or tickets for passage of a person on a common carrier at an increase in price in excess of one dollar ($1.00) over the established rate for the passage and, whenever the resale is completed, the seller shall give to the purchaser a receipt indicating the amount paid for the ticket or tickets. Any person found guilty of violating the provisions of this section shall be fined not more than five hundred dollars ($500).