PA alcohol laws are strange. We have our own Wikipedia page attempting to describe them! As I understand it, wine can only be purchased from a state store. Mostly these are closed on Sunday's, but there are a handful throughout the commonwealth that have Sunday hours. We cannot have wine shipped to a private address. We can make arrangements with a licensed wine shipper to mail the wine to a state store, as long as that wine is not normally available in PA stores, and I think there is a limit of 9 liters per month. All the usually state taxes are levied.

There are a few grocery stores that sell beer (maybe wine, but the one in my town is beer only). These stores have separate dining areas, exits, and checkouts that are distinct from the rest of the store.