To get it covered, you'd have to convince them that its "unusual" wear. After tire changes, and adding aftermarket rims, they might just say that it's a result of those things. If you really dont want to pay for it, you're gonna have to go in mad, and complain that they're inferior or something. Doubt you'll get covered, though. Just remember, those bolts are the same on all recent mazdas, so you can go to a junkyard and get the whole mount replaced. Easy do-it-yourselfer.
