Says she took "one one those (moped) around Mackinac Island on a Fudge tour" . You cannot take a motorized moped (or car) on Mackinac Island.
Emily and her mother could not have ridden a Vespas around Mackinac Island. Motor vehicles were banned from the island in 1898 and aren't allowed on the Island except for emergency vehicles and snowmobiles. Vespas aren't allowed on the Island. She would have had to ride a bicycle or a horse-drawn carriage.