I was in AV today and /AFK'd out after a double turtle. It did not give me the Deserter buff after I did these steps. Heftydogg has tested this again and it does work.
1)Ressurecting at Stormpike Graveyard.
2)typed /afk at around 7 seconds on the respawn timer.
EDIT: Thanks Heftydogg. +rep for you.