[quote name='Ugamer_X']Store won't give a shit, just contact them through the site.
Unless you plan on returning it at the store for a complete copy.[/QUOTE]
Depends on the store.
I've gotten a manual out of a store before -- they just let me take it out of one of the used cases. I've never tried with cover art. I did legitimately purchase the game with missing manual at a different store -- and when I couldn't find a manual online, I just happened to look at a different gamestop one day -- the clerk was really cool about it.