The module for your ignition got screwed up when you turned hard, however unlikely it was that it was due to turning the wheel hard. Take apart the plastic piece and the metal gaurd underneath the dash, just below the steering column. You will see a white plastic module with a few wires hanging out of the top. When you get it out, you will see a metal pole sticking out of the side. Either you screwed up this module, or the actual turnkey module up in the steering column. The key module basically just moves a lever to go down to that first module and move that metal stick back and forth. Since the ignition kept spinning, i would think it's the bottom white one. However, the turnkey stuff may also be bad, or the culprit because you could take the key out and it kept going, right? I know i didn't even need the key to start my car before it got crashed, and i had to replace the module under the dash once.
Hope it helps!
Lee