You can try this:

http://www.xoutpost.com/847158-post7.html

I'm not sure if you can call AAA to go through the hatch and pull that emergency release. Most of the time they can use a bladder to create a gap but not sure if that can be done on the rear hatch without breaking it.

I thought there was a method where you could restore power temporarily to use your keys to unlock (under the car). I can't remember the method offhand. I'll try and see if I can find it.

EDIT: Is there AAA over there?! LOL! Sorry, I didn't notice you're not stateside.