P&C switch on the B'ville branch is still in place, spiked Out of service. I believe most supermarkets receive rail service in an indirect fashion. Such as the Rail-Ex facility in South Schenectady (I'm pretty sure I've seen Price Chopper trucks at the Rail-Ex facility and they have a warehouse nearly on the opposite side of the CSX Selkirk Branch main line tracks), Tropicana facility in New Jersey(?) and other types of separate but connected operations, where produce and product are shipped via truck to the supermarkets warehouses. On the other hand, a number of products receive material by rail and then ship finished products by truck/containers. I have seen K-Mart and other retailers supplies sent via containers on rail then truck.
Harleys and EMDs, some of my favorite rides