Google Maps: Problem when using coordinates

I am making a website for somebody and their address is incorrect on google maps. It displays a block away from where it really is. Google allows you to edit locations but you can't edit theirs because their office is on an old military fort/base and you can't edit government locations on google maps.

My resolution to this was to use the exact coordinates instead of his address when putting their location on the map. On the google maps website this works fine, but on your plugin it appears to default to the closest address when giving directions, instead of going to the exact coordinates.

Not sure if this would be considered a bug or a feature request, but I would hate to not be able to use this plugin for them, considering the location.

Thanks!
Colin