Pick-up locations vary by destination and car rental company. Some airport locations may allow you to pick up your car in the terminal, while others may require you to take a shuttle to the pick-up location. Some car rental companies may charge extra if you pick up or drop off your car outside of the pre-arranged pick-up or drop-off hours.
Please check with your rental car company to confirm your pick-up location and hours of pick-up/drop off.