Stories about Haunted houses and hotels are pretty common, but you rarely hear about Haunted Grocery stores. A California town called Chowchilla is believed to be home to the most Haunted Grocery Store in America: the Save Mart on Robertson Boulevard (which closed in 2008). The ghost of a man with claw marks on his face was spotted in the frozen food section several times, and a former store employee says he came face-to-face with the spirit and that on the store's security camera footage, it looked like the employee was screaming and running away from nothing.

http://backpackerverse.com/chowchilla-home-to-the-most-haunted-grocery-store-in-america/

I found this story on Backpackerverse, but I did a little research and found a few more websites that talk about the haunted Save Mart:

http://www.weirdfresno.com/2010/04/was-old-save-mart-in-chowchilla-haunted.html

http://forgottenusa.com/haunts/CA/2625/Save-Mart%20Supermarkets/