Think of it as dressing up what you would wear out casually. That's not to say you can't dress to the nines, but "black tie"/tuxedos are too formal. If you still have questions we recommend visiting this website for examples: www.wezoree.com/inspiration/what-to-wear-to-a-dressy-casual-wedding/
Yes, shuttle service is provided and is the recommended method to get to the venue. They will pick up from the Pala Mesa Resort and Pala Casino.
Parking is free at both Pala Mesa Resort and Pala Casino. You do not have to be staying at either location, you just need to park and ride the shuttle.
Yes, however there is limited cell service at the venue so at the end of the night you may have to take the shuttle to the Pala Mesa Resort or Pala Casino, then order your Uber/Lyft.
Yes, but parking is very limited - PLEASE LET US KNOW if you plan on driving yourself so we can ensure there is parking available -
and drink you will need take the shuttle back and return to pick up your car before 10am the following morning.