The pick-up/drop-off area is for just that purpose, no waiting/parking or you are subject to a ticket or tow. If you and your arrival have cell phones you can sit with your car in the "cell phone waiting" area, have them call you when they are ready and you can proceed to the pick-up area at their terminal. There's short-term parking at every terminal where you can park and proceed to the terminal to wait there.
The pick-up/drop-off area is