It was perfectly executed, and I haven't been this confused since Daniel Bryan's release last year. A part of me wants this to be a shoot so bad, although thinking logically it's most likely to be scripted.
There is NO WAY in the world that promo was scripted, that all came from CM Punk. But if you check the Raw run sheet i promise it said something like this
''11:00 - show ends : CM Punk cuts shoot style promo''