I forgot to mention that the local O'Reilly's also re-arranges the racks, except for those on the walls.
I managed an AutoZone for awhile, and they did that too, about monthly; IIRC, it was called "planogram". We pretty much hated that...
But it was nice to get 25% off and score the occasional un-returnable opened/used item.
As for the cat food - yeah, they can be kinda picky - and generally seem to prefer kitty junk-food instead of the healthiest stuff.