It appears that Philadelphia Police disagree: they arrested Adam while he spoke at a "Smoke Down Prohibition" marijuana protest on Saturday, May 19, 2013. According to his official Facebook page, Kokesh has been charged with resisting arrest and will face a judge on Monday.
If amateur video of the event can be trusted, it appears as if a plainclothes cop attempted to plant something on Kokesh while police in uniform were arresting him.
This footage of Philly cops detaining Adam Kokesh clearly shows a man with a shaved head wearing a dark green shirt attempting to put something in Adam's back pocket. At first glance it appears that this ass-grabbing mystery man is being arrested as well, but the police do not appear to be restraining his right arm very effectively or handling him nearly as roughly as they do Kokesh. It looks more like the mystery man is being intentionally pushed into Kokesh so he can plant something in his pocket.
This is the best video I've found on the topic. Other videos are posted below.
See for yourself... watch the whole video for slow motion of the potentially incriminating part.
This video is not has high quality but it shows another angle of the man attempting to access Kokesh's back pocket while police herd the two men against one another.
Here's another video of the scene in slow motion...
This video is obnoxiously loud and 90* off normal but it shows the initial arrest from another angle in HD...
Again, regardless of what you think of Kokesh's message or methods, he is one heck of a rabble rouser, and he has every right to speak as freely as he wants to. A lot of what he says makes perfect sense too. Peace.