What are the after-hours return procedures and key drop box location at the SeaTac Rental Car Facility?

When returning your National rental vehicle after hours at the SeaTac Rental Car Facility, please follow these specific steps to ensure a smooth and hassle-free process. First, drive your vehicle into the rental car facility located at 3150 S 160th Street. Proceed to the 4th floor, which is the designated National return area. Once on the 4th floor, pull your vehicle forward into any available return stall, making sure to park as far forward as possible to allow ample room for other returning customers. After turning off the engine, gather all of your personal belongings from the vehicle. It is absolutely critical that you do not lock the vehicle doors; leaving the car unlocked prevents the keys from being accidentally locked inside, which can result in significant delays and potential lockout fees. Instead, simply take the keys and drop them into the clearly marked National key drop box situated at the return kiosk near the elevators. Retain your copy of the rental agreement or take a photo of the drop box receipt for your records. Your vehicle will be securely checked in by National staff the following morning at 6:00 AM, and your return will be officially processed at that time.