Your insurance card has your address on it, is easier to grab than the GPS is to turn on, and is required to be in the vehicle.
and as for giving pin numbers... my pin number is not the same as hubbies pin number... and if he sent me a text message asking me for his pin number I think I would be calling him back to check if he had whacked his head or something.
I will still have family members listed as who/what they are because if something happens to me instead of meaningless names, EMT's or whoever will have ICE/hubby, and MOM to call.