First off TSA can't arrest anyone and local police would need a valid charge to arrest the joker. I don't see how this kind of thing makes the public perception of TSA improve and I would suggest it only continues to erode any goodwill TSA has remaining.
Here is TSA's problem in a nutshell:
The TSA has never been bashful about violating people’s rights. The agency’s entire job description is to search travelers without probable cause or a warrant. Their intrusive searches, abusive treatment of travelers, ineptitude, and penchant for stealing have made them a source of disdain and a butt of jokes since the TSA’s inception in 2002.