Good report and video SM... you are spot on, the whole "etiquette" myth is just that.... a myth.
Big dogs get the waves and everyone else watches or moves on.
Respect, positioning and ability are what get waves in Hawaii.
Good looking SUP waves in town. So fun and workable.... you were rocking that Speeed!
Made me want to go back and try those breaks.
I never surfed town in the late 70's... just the North Shore, but did get a nice session in 1985 where I experienced some Aloha vibe somewhere over near Ala Moana... but further north by a jetty.
I watched the vid before reading your story... I was wondering if Island heritage was working in your favor, so not surprised to hear you were given solid respect.... so stoked you had an awesome time there.
If I ate like you ate on this trip I'd be sinking all my boards