No, If there is a car left overnight there will be a fine to pay from the venue.
Yes there is a park and ride lot a half mile south of the venue.
The dress code is semi-formal
Yes, there will be a shuttle that will pick you up at the hotel and or the postcard cabins and drop you back off after wedding at certain times.
Depart Holiday Inn Express: 3:35pm Depart Postcard Cabins: 4:00pm Return Trips Will Be At: 9:00pm, 10:00pm, and 11:00pm