hmmm, i remebered a similar problem. friend locked his steering wheel and couldn't unlock it with the key. my dad had to remove the ignition to turn it.
but yours is opposite? spray some wd-40 in that sucker... lol
i replaced the cyclinder the guy i went to said it was the key for sure after 3 days imma remove it probably sometime soon and see if it turns and take it to a locksmith