How do I store a Gruppe Sechs van in the airport hangar?

In GTA V story mode, I’ve recently been trying to store a Gruppe Sechs security van. I’ve noticed that you can’t store this van in a regular garage, so I tried the hangar instead. I stole the van but haven’t blown open the back doors.

If I leave the van, will it stay in the hangar? Or do I have to blow open the back doors?