Save Vehicle Anywhere for SA Definitive Edition by Cheeseburger
With this script, you can save your transport anywhere. To do this, press L. To save transport, you need to be in the car. After that, it will be displayed on the radar. You can save one vehicle at a time. Cars are not saved in saves. There are two versions of the script in the archive.
For the mod to work, you need CLEO Redux. You can download here (clickable).