You're right, Jess- the pin is there. I guess mine isn't working either because it doesn't actuate when I lock the doors (I can still open the fuel door). I imagine that it is easy to get to once you pull the rear panel. Funny, because I just noticed the fuel release cord a few weeks ago and just thought it was for some option my car didn't have or for some other application (I guess I wasn't overly curious that day...)
Looks like I have something else to add to my 'parts needed' list.