Do you have any access to internet services without registering with your name?

Maybe at public transportation, in a mall… Please don’t bring trouble to any small businesses.

Be prepared to find usual ports blocked and research on how to randomize your MAC address.

Well, with that assumption, the tree behind the window might not be real. OP might live in The Matrix and nothing was real.

You can use SSH for unlocking: https://www.cyberciti.biz/security/how-to-unlock-luks-using-dropbear-ssh-keys-remotely-in-linux/