Hey that's an interesting problem! Hehe, not being a CVS expert the best thing I can think of is to download the Arch LiveCD (there's a couple floating around, check the forums) and chuck that on a USB key or something writable, boot from it on your work computer, run abs as root to do your thing and then take it home and copy over the binaries + /var/abs
Not sure if that would even work but it's all I got sorry