Your phone has to be able to send (accurate) information on your whereabouts to the E911 system. You can’t change that by changing the GPS setting.

And even if you have a very old, very cheap phone that’s not equipped for E911, your cellphone can tell approximately where you are by what cell towers it finds nearby. You can’t fool it, and the police can probably get a court order to obtain your whereabouts.

The only way to protect yourself from cellphone tracking is to turn the phone off. NEVER carry your cellphone when you’re at the crime scene or in the getaway car! In fact, if your alibi is going to be that you were in a bar at the time the crime was committed or you were home in bed all night, your lawyer will love you if you leave your cellphone, turned on, at the bar or in your bedroom while you commit the crime. He won’t even have to contact the phone company to get the records; the DA will do that for him!