Just because a food is advertised with a geographic location doesn't mean it was sourced from there:
As it happens, the tomatoes most visibly associated with San Marzano in the United States are actually grown in California, not Italy (although they are the same varietal). Indeed, the very concept of protected geographic origin is a tenuous one in the United States, which relies instead on trademarks that defend geo-specific brand names such as Boston Market (a national fast food chain based in Golden, Colorado) and Philadelphia Cream Cheese (manufactured by Kraft in Wisconsin) …
The Dish 