Hyphens, En Dashes, Em Dashes

Q. The menu in our cafeteria shows that enchiladas are available “Tues.–Fri.” However, when I ordered one on a Wednesday, I was informed that enchiladas are available on Tuesday AND Friday, not Tuesday THROUGH Friday. When I informed the cafeteria manager that this was incorrect, she seemed shocked and refused to change the sign. Please help determine who is correct!

A. Although the sign was incorrect, I’m not sure you should annoy the person who provides the enchiladas.