Definetly run to the dealer and get a new tumbler then follow Gilly's advice on removing the tumbler.
Here is the lesson I learned if anyone is reading this post and having the same problems: If your key breaks in the ignition and the wheel is locked and you cant get the tumbler to turn to a place where you can get it removed via a tool, here is what to do: Do nothing to the tumbler or cover, you are wasting your time, just take of the lower dash, move the clamp on steering lock arm where it connects to the ignition part, grind away or drill out the pin that is holding the parts together. Then remove the entire wheel lock/igniton/tumbler assembly and replace it.
I was able to cut the black cover off of the tumbler and grind the inside to bits until I could unlock the wheel, but it took all day and I damaged the ignition, wheel lock part anyway. So it was a waste of time.
Better yet, when your key gets difficult replace the one part, the tumbler.