the ignition on 2002 Cadillac DeVille DTS

I parked my car last night no problems, this morning I got in and put the key in the ignition and could not get it to turn in the switch. The wheels are straight not up against anything tried moving the steering wheel back and forth. Then I went back later and now the key will not even go in the ignition

Asked by for the 2002 Cadillac DeVille DTS
lock cylinder failure. check with a shop or lock smith who can do this on site instead of possible ttrans damage from towing attempts.