Yes, there will be designated smoking areas that you must stay in while smoking.
Yes, the reception will follow the ceremony. No need to go anywhere. :)
If you choose to tip the bar tenders, there will be a locked box that you can place your tip in. They are not allowed to exchange money by law, so they are not able to give out change.
Yes! There is parking on site. You may also leave your car overnight. However, you MUST pick up your car by 8:30am.