Dave Chappelle tells single joke then stands on stage and sighs for 45 minutes

Dave Chappelle’s recent career moves have all been based around being withholding, a passive-aggressive, somewhat-unhealthy relationship with his fans that includes ditching his beloved Comedy Central show, denying any and all rumors of a TV comeback, and refusing to let anyone know when and where he’ll be doing stand-up comedy again. This strange demand for privacy even in his most public moments extends to his stringent policy against people taping those appearances to share with others—something Chappelle apparently hates so much, if he catches you doing it he’ll even purposefully bomb a set like the one at this weekend’s Summer Groove charity event in Miami.
According to numerous sources, Chappelle stopped his show after telling a single opening joke to complain about people filming him from the front row. And according to an eyewitness account by CNN reporter Roland S. Martin, he then proceeded to spend the next 45 minutes just sort of standing around awkwardly—“sighing audibly” and occasionally checking his text messages—as the audience grew restless and began booing him. Here is Martin’s chronological report on Twitter (as compiled by Vulture):
This Dave Chappelle set is bizarre. He's spent more time going back & forth with one audience member, & pretty much stopped telling jokes
One woman just yelled, "Can you tell a joke so we can enjoy ourselves!" He got texted four times during his show and actually checked them
I'm just not understanding what threw him off. He's complained about folks videotaping his set, yelling out loud. I don't get it