I largely thought this wouldn’t work, but having tried it at several grocery store chains while traveling with a 100% success rate so far I’m not complaining. (Nothing worse then being told you can’t sign up because customer service is closed, and you have to sign up to get the pricing, and there’s no generic store card they can scan as a curtesy ).

- this has worked for me in Rhode Island, Connecticut, Virginia, West Virginia, Michigan, and Wisconsin.