If you do carry in a Blockbuster, your CCW permit doesn't apply.
If while in their store you are forced to fire in defense, you'll face prosecution, no matter what.
However as this case clearly shows, that might be the least of your worries.
I guess that I just don't care.
I can live with that.
You sure about that? I recall that Blockbuster had a no-concealed-weapons policy several years ago, but that they had reversed this policy in the face of thousands of protests from outraged gunowners.
OTOH, I may just be a maroon...