You cannot sell a toothbrush and toothpaste to the same customer on a Sunday.

The Law

Rhode Island has a long history of strictly enforced 'Blue Laws' designed to keep the Sabbath a day of rest rather than commerce. While a merchant might get away with selling one hygiene item, combining the two apparently crossed the line into aggressive salesmanship. You will just have to deal with morning breath until Monday. It is a classic example of micromanaged moral legislation.