Help! I'm trapped in a wall!

I've managed to get myself stuck in the geometry of a wall. I can't jump or walk or dodge out it seems. In most other MMO's I've played, /Stuck, or /Unstuck or some variant thereof can be used to rectify such a situation, however, nothing I can seem to think of is working in GW2.

Tantalizingly, /stuck doesn't seem to produce an 'Unknown command' error - but it also doesn't do anything.

Also, I am an idiot with no money and cannot use a waypoint.

Normally, you have to use a waypoint. If you don't have the money to, open the pvp interface and teleport to the heart of the mists - and from there, enter the portal to Lion's Arch.

Once I got stuck in a tree so I used a few spare skill points to unlock and try a couple different teleport skills, eventually as a guardian I was able to use Judge's Intervention on a nearby bird and got out of the tree.