I was not there and do not know what anyone was asked to prove.
Arguing about a headline is just stupid. Anyone who has ever worked in journalism knows that headlines are written by someone other than those who wrote the article, and the intent is to attract attention and to fit the space available on the page, one column, two columns, three columns, etc.. It is more clear what happened if one reads this article. It is really of little concern of anyone was left out of a chance to hear Rick Perry speak.
It is like being denied a mug of corn nog, or a sardine-flavored pretzel.