I don't think so.
There's a case to be made that the county changed their interpretation at the last minute in order to moot the case.
At one time, the county stated that the Nordykes could hold a gun show as long as there were no guns present. It was ridiculously suggested that they could use pictures of guns.
The county may have avoided a losing session at the Ninth Circuit, but the case is not over. I would be confident that the Nordykes will insist, as they should, that you can't have a gun show without selling ammunition.
The Ninth Circuit was so willing to dump the case that they didn't allow this topic to be discussed. After years of representing their ordinance as a gun ban, the county suddenly claims that tethered guns would be allowed.
But it was never really a gun ban, because re-enactments and the like were allowed. This was purely and has always been a vendetta by Mary King and the Board of Supervisors against Russ & Sally.