Trying to use mavic mini camera while its upside down.

I had a cool idea for a shot where a vehicle drives over the top of the Mavic Mini while it is laying on the ground upside down(on its back). As the car drives over the top the camera would follow it and watch it drive away.Problem is, when the Mini is upside the gimbal does not respond. Does anyone have any ideas how I might override that issue or have a work around? via /r/drones https://ift.tt/2Ai2NjW