Your key lock switch is broken. Ford had this problem about 10 years ago on the Focus and has long ago fixed it. It is the result of poor quality, particularly on a new 2010 Toyota, and there is no excuse for this to happen. It simply means that the ignition switch does not recognize the key, has malfunctioned and the key can not be removed or turned to start the car. Good luck. It may need to be towed.
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