Does anyone think this a good idea? I can understand having it as a back up but lets say you get pulled over and have to show a cop your Drivers License, next t

Does anyone think this a good idea? I can understand having it as a back up but lets say you get pulled over and have to show a cop your Drivers License, next thing you know he is looking through your entire phone. Even having your phone unlocked while going through a TSA Checkpoint (showing your Ticket) is just exposing the rest of your phones contents for anyone to search it. My device and it's information should remain only available to me. Unless they can create a way to show an ID without unlocking the phone and only when you allow it, no thanks.