What type of cheesecake is the most common in southern US SuperMarkets?
Google search for various grocery store cheesecakes reveals: 


http://www.gianteagle.com/entertain/entertaining-guide/dazzling-desserts (Scroll down a little)
http://www.grocerycouponnetwork.com/images/food-products/Safeway_Select_New_York_Cheesecake.jpg
http://s3-media2.ak.yelpcdn.com/bphoto/wN7AQw4j1DrckCZWxyMgYw/l.jpg
http://images.mysupermarket.co.uk/ProductsDetailed/77/177077.jpg
http://newyork.seriouseats.com/images/20091016cheesecake-sleebox.jpg


Is that what is meant? If so, it appears to be a fairly generic baked New York style cheesecake. Wiki says frozen ones often include sour cream instead of heavy cream, so they'll freeze better.