The ceremony will be outdoors, unless it is raining, then it will be indoors. Cocktail hour is inside/outside and reception is inside.
There will be two buses that will transport guests from the hotel to the venue at 3:15pm then transport guests back to the hotel after the reception at 11:00pm. You can also drive yourself if preferred.
Yes. Cars can be left over night at the venue, but must be picked up by 10:00am the following morning.