Yes! Formal attire. Men, please wear a full suit (not black tie). Women, please wear a formal dress/jumpsuit. Reception and cocktail hour will be on the lawn, so you may want to avoid thin heels.
Yes, however we strongly encourage you to take an uber/lyft/cab. We want everyone to enjoy the festivities and beverages without worrying about what their rental car looks like and driving back to their lodgings afterwards.