$6.20 in gas just to go there? DAMNNNNN! Where the hell do you live that it's that far of a trek to a Wal*Mart? I mean, seriously, WalMart around here is like the black plague, constantly encroaching and multiplying.
Hell, they're building one less than 20 blocks from my house and if I didn't think they were as evil a corporation as Circuit City, Gamestop and EA Games, I'd actually apply and work there. But, then again, I don't have the shiny happy WalMart attitude.
Actually, I worked for the one Wally World about 6-8 miles from me back in 2000ish and NO ONE there was as cheerful as you used to see on the WalMart commercials(until they figured out they could use a bouncing smiley face and only have to pay the voice over guy for the commercial thus saving more money for them to buy American flags from Mexico).
Just return the game, get GH II and be done with it already, before the game DOES go down in value.