Yeah.... They won't work for a few reasons.
1. The rear seat is a 60/40 bench seat, and the seatcover from Walmart would be a traditional straight bench seat cover.
2. If you did decide to use the bench cover for it you would lose the access to the under seat storage because the cover will likely be 1 piece (you won't be able to fold the seats forward anymore).
3. The middle seatbelt is integrated to the top of the seat making it not possible to cover over it without either cutting the cover or covering the seatbelt.
I work at www.seatcoversunlimited.com
and can get you 10% off and free shipping to the lower 48 states. PM me or send us a email online (I take care of those at work)