Yes. Shuttles depart at 4:30 from Treasure Island to Little Log House Pioneer Village. Return shuttles will bring guests back to the hotel at 10:45 and 12.
Check-In begins at 4:00. Treasure Island can't guarantee any early check-ins, but it may be possible they will have rooms available earlier than 4.
Yes, vehicles may be left overnight but will need to be picked up the next morning before any events on Sunday.