Yes, there is free parking at the ceremony. There are several paid lots near the reception, including the Whex Garage at 270 W 5th St.

To the ceremony: There will be shuttle service from outside of the Hyatt Regency to the ceremony. The Hyatt and Hilton are side by side, so you can take the shuttle regardless of which hotel you stay. To the reception: There will also be a shuttle from the ceremony to the reception. From the reception: At the end of the night, you can walk one block back to the Hyatt or Hilton!

Cocktail attire is suggested.