[bitfolk] Please say I've got an option other than a reprovision

Hi folks, hopefully you can help me solve this issue by means other than asking Andy to reprovision my VPS. Failing that hopefully you'll get a chuckle at my 'maintainance whilst too tiered' story. I issued "sudo chmod og= .*" whilst in /etc/skel intending to change the permissions on the three dot files in there. It changed the permissions on /etc instead. Now any sudo xxx command results in "sudo: can't open /etc/sudoers: Permission denied". I can't login as root - the account has no password set. I can't do a "sudo passwd" to set the root password. I can't do a "sudo chmod" on the /etc/sudoers file. Any ideas on what to do?