It appears that PyCon staff did handle the incident, and did so sensibly and discretely:
http://pycon.blogspot.co.uk/2013/03/pycon-response-to-inappr...
It's not clear whether that happened before or after the photo was posted.
Edit: the code of conduct also says "Public shaming can be counter-productive to building a strong community. PyCon does not condone nor participate in such actions out of respect."