Even though much of the Eris parade situation did not occur in the French Quarter, it does have a bearing on it. In this first link, the organizers talk about how they rerouted the parade to not go to Jackson Square because they could sense the tension from the idea of downtown artists coming to parade in the old city.
Second is the video of a police officer telling someone to put the camera down while they were doing what a citizen should do:
And lastly, the NOPD (including the 8th District) is in this paraders account of his arrest:
Eris parader account
All I can say at this point (as we watch to see how this unfolds) is that we all need to take a deep breath, count the many ways that the creative culture makes this city thrive and do what we can to support more dynamic artist activity in the French Quarter and nearby neighborhoods.