The ruling is in line with what some other courts have said, and ends a split between courts on the topic. However, it won't be surprising if there's an eventual Supreme Court challenge. As many would note, it's virtually impossible to avoid supplying your location at some point. Making a call will offer some basic positional info to your carrier, and many common smartphone tasks (such as navigation or social check-ins) demand that data. Until there's a ruling to the contrary, though, you can't assume that the police will have to jump through hoops to find out where you've been.