Stuck ignition

[JamesB]

I have A 1992 300e ive started it often with no prob turning the key. well ive noticed in the past week the ignition getting slightly harder to turn to the start position. my wife took the car to work last night on second shift. at 11.00 pm she called saying the key wont turn at all steering is locked. the car is in park wont come out of gear. Its stuck. i tried moving steering wheel right and left to brack it loose. no good. tried pushing brack peddle down turn the key no good. tried spraying carb cleaner . then w d40 no luck, tried pushing car back and forward to brack key loose no good. someone said maybe netural switch. whats that have to do with key turning to on position. Please someone Help me. The Dealer Waiting With money signs in his eyes.