Recovery code system? Like 2FA today, generate a special bootstrap key you can print and save.
This isn't that uncommon. Things like disk encryption also do this (e.g. bitlocker)
This isn't that uncommon. Things like disk encryption also do this (e.g. bitlocker)
So ... a password?
Also in this scenario you've been robbed. It's quite possible that either they took your printed out passkey also since it was in your wallet, or you're not at home where you can get the pass key from your file cabinet or safe.