Are you sharing a room or will they have their own room? If they are sharing a room and are named on the reservation just ask at the front desk and they should print one off for you.
Vallet park your car and take the parking pass out. Meet them outside the gate and drive in with them.....or vice versa, and have them valet park for free while you show the valets your card.
Dissclaimer: The poster does not advocate using the above advice. Unless, of course, your guests bring their own refillable mugs and plan to use SAB. Then the parking issue is moot.