Another way to handle it, in my opinion, would have been to organize bus-loads of people, sorted by neighborhood, to return as soon as the main roads are cleared, and give them 15-30 minutes to visit their homes and remove items they need until general access is allowed. They could be escorted by police or national guard troops to ensure they didn't try to sneak off and remain behind when the bus returned to the mainland. The way the current situation was handled was disgraceful and sets a bad precedent for future evacuations.
Yes, you are right on the money with your observations. U.S. Fish & Wildlife Service, however, has had access to the islands, "to check on the 'endangered species'". What's wrong with this picture, folks? While homeowners are unable to even get back home to check on their homes, pets and get insurance claims started, a federal agency is making sure all the gators are okay.