I used to live on the island. 5 presidents visited with full secret service protection without the need of the full motorcade. There would be an appropriate vehicle brought to the island and kept out of sight but no parade of cars like this. Islanders generally would take this as a straight up middle finger to their home and their tradition by a guest. No one has pulled this stunt before and I find it offensive even if the Sheplers, who run the biggest ferry company, are making apologies for carrying the cars over.