If you're far away from home, get mugged, you have nothing left on your person, and you need to get help, what do you do? You have no cash, no wallet, no cards

If you're far away from home, get mugged, you have nothing left on your person, and you need to get help, what do you do? You have no cash, no wallet, no cards, no phone, no yubikey, nothing. There's a public library next door where you can use an internet terminal to log into your Google Voice and G-mail and send an e-mail for help or call your family without needing cash on hand. Those websites enforce 2FA, so this is the solution to that. (I realize this breaks the premise of 2FA, but it will get you back safely, which is probably more important on your Maslow hierarchy than some infosec policy.)