Top down day/night shades...

Thanks BudFoster, exactly what I thought too. And of course they'll fall down if taken loose and held upside down. They will right side up too.
For those of you that have presenting an opposing opinion, I'll try and post but I can't see why with proper tension adjustment, they'd fall down. They don't function by gravity either side up right?

Mine are all tight enough that they wouldn't fall down. If you can adjust the tension, I think it would work.

Why not use frosted window film?

I think the only way that will work is if you park your rig upside down..:B

You can get cellular shades to replace your day night shades that will open both ways...top down or bottom up.

Edit, incorrect response. Was thinking of the kind of blinds I use and not the Day/Night corded type.