I remember when the ADB (Asian Development Bank) came down here what, like 11 years or more ago? I actually bought a video camera and headed out there to film what was going on. Back then the Convention Center was brand new and all it would have taken was ONE rock...or one something that potentially could have set things off. This was also within a six month period of rioting in Seattle and Toronto where the anarchist were full blown working to basically destroy the local businesses there.
Personally, I don't mind that they put in a few extra restrictions for the safety and protection of Honolulu. I recall several businesses near Ala Moana boarded up...like You Hungry. There was an initial demonstration at Ala Moana Park...that then walked over in front of the Convention Center. From there the Hawaiians did a spiel, then others spoke... went on for a hour or two. No rioting. Then the protestors (and myself) paraded down Kalakaua to Kapiolani Park...under police escort. Cops were lined up on both sides of the street walking along the protestors... Nothing bad happened. Although one protestor did come up and block my camera asking who I was... then left after I gave him an answer that he probably didn't understand. I don't think he was all that important where the government was trying to track down who was who.
Overall, I think the C&C did a "decent" job in allowing the protestors to protest. Allowing the Hawaiian rights groups to fluff their feathers, and provided a safe thoroughfare for a parade/protest.
APEC is a little different...since it's multiple days. However, again though, we are following a series of international protests and unrest (Occupy Wall Street, London Riots, all the Mid-East riots). I also know a number of the local protestors (vs. UARC, vs. Strykers, and the lead attorney(s) for Kauai and Maui vs. the Super Ferry, and a number of the Hawaiian rights folks). My hope is that the mainland anarchist choose NOT to come here (cost prohibitive?) and even if they do, the locals here will eat them alive. I'd almost be tempted to see what would happen if any of them approached some of the Hawaiian groups here...heh.
Regardless, depending where they allow the protests and demonstrations, depends if anyone's first amendment rights are violated. Regardless though, public health, safety, and welfare USUALLY takes precedence over almost all other Constitutional rights.