Escape from Lesser Tuma

So you decided to explore the ruins at Lesser Tuma. You crossed the broken bridge, hopscotched over toppled pillars, and the roof almost collapsed on your head, but you survived it nonetheless. Then you found the open coffin and leaped inside. Which open coffin?

That open coffin.

You found yourself inside this dark, empty room with nothing but a bowl of soup and your diminishing wits as you realize... there's no way out! I now present to you eight easy steps for escaping from the escape-proof room in Lesser Tuma.

STEP 1: Get yourself stuck in the room. Yes, jump down through the coffin. Trust me!
STEP 2: Calmly check every wall and pillar for exits. Did you find the invisible pillar?
STEP 3: Run around like a chicken with your head chopped of when you realize: There are no exits.
STEP 4: Summon a friend who will try to knock you through the walls with a paintball gun. When that fails, try to take out a hoverpack or buggy to escape. When that fails, move on to step five.
STEP 5: Eat your soup. All this escaping business has you very hungry. You need to keep up your strength.
STEP 6: Notice that the zone is open for third party hosting. Host an event entitled "Get me out of Lesser Tuma!!". Invite your friends. Notice that you are unable to change permissions in the zone and, therefore, any vehicle trick that may provide an easy escape is out of the question.
STEP 7: Using a chair or seating group and two long 45 ramps, stack the objects in such a way that it allows you to poke yourself up through the ceiling and walk up the ramps and out of the room. You're smart; you'll figure it out.
STEP 8: Clean up the mess you've made.

Jon Quixote was There.