The owner was asked if an autism-awareness event could be held at his business. He accepted, in part because he has family members with autism. After the event has gotten rolling, he realizes it’s actually a campaign event for the GOP and tells the guy to fuck off.
Seems like they either deliberately went out of their way to hide what the event really was, or the business owner didn’t really bother to look up who was holding the event and put two-and-two together.
Those names are taken from Iain M. Banks’ Culture sci-fi series.