The second problem is that even the SFO airport doesn't take them as legitimate IDs.
For the folks who are worried about giving your phone to the cop - I guess I am not worried about it much. The cop has the right to lethal force and probably knows more about the situation when you are stopped than you ever will. So they take a look at your phone? I don't assume they will just take and keep it.
If you need to call your mom, probably best not to call her when the cop is right in front of you. If you need to call your lawyer - you are permitted to do that by law. If you are Googling for what your rights are - you are doing it way too late.