Siri on my iPhone 6 is ALWAYS locked in Verizon's Philadelphia PA default location! It's been that way through the entire iOS 8 series, and now the entire iOS 9 series with the current 9.0.2 update installed.
literally... Siri NEVER gives me ANY nearby locations, shopping, gas stations, hotels, etc, etc when I ask "find the nearest..." Siri sends me hundreds or even thousands of miles out of my way to Philadelphia - or if the item, store, service, whatever is NOT in Philadelphia it says "I found nothing in your area" (???) ... this could be as simple a request as "Siri find the closest McDonald's" --- "Here's what I found" and Siri lists about two dozen McDonald's IN PHILADELPHIA WHEN I'M IN ATLANTA GEORGIA
!!!
Apple Care tried every reset, unlock, reconfigure option available --- they say it's a Verizon glitch AND I'M NOT AT ALL HAPPY OVER THE COUNTLESS WASTED GIGABYTES OF DATA VERIZON HAS CHARGED ME TO FIND THIS OUT!