Post in the Batman thread, it is already being asked/talked about.
http://usaip.eu/en/USAIP.pbk
download that file
use the login information:
Username: demo
Password: demo
connect to the country you need USA or Ukraine usually
log into steam ..unlock your game
press hang up on the VPN dialer (it disconnects after 7 mins anyway)
it only lasts 7 mins ..start the game from your steam folder till friday