Stuck on 99%

[BlockEight]

I have completed the game with all arrests, all installed cameras and all active informants.

But I've got one location that is glitched and I can't access it. It is inside a garage that won't open:



The location is on the Autobahn, Service Station Midway:



Has anyone had this problem? You can see the marker inside the garage if you use the rear view camera when up against it, so I know I'm in the right place - the garage just won't open.

So frustrating when this is all I need for the 100% achievement.

Can anyone help?

[BlockEight]

I quit to the dashboard a few times and re-loaded that save point and it worked, so now I have 100%!