https://bbs.archlinux.org – I've done this once. Search for the next train station, kiosk or book shop. Find a magazine with a Linux live CD, doesn't matter which one, all you need is a shell to download and dd to Arch iso to the USB dongle.WARNING: Anecdote! This is, by the way, how I turned into a full-time Linux user. Broken Windows, could not access the network, could not rescue my data. (HowTos)