For many reasons, I tend to believe that it was NOT KC on the tarmac @ Orlando Exec Airport. It could really have been a farce to toy with reporters. Why would she be in exactly the same clothes? Someone has been buying clothes for her! She wore something different every day in trial, AND she certainly didn't leave the jail in the same thing she wore when she went in. Besides, even JB told reporters that it was a joke.
However, I was watching WFTV this morning, and they said that if it was really a joke by TM (the att, not the ES guy), then it was a really "lucky" joke, that they would be able to pull it off at the exact time their chopper happened to be there. Also, from the waist down, that woman, whoever she was, certainly has the exact same body shape as KC. While that's certainly not impossible, what are the odds?