I agree with Cw on this one.
But I'll put my two cents in. A few years ago I was buying a few High ticket items at our local store. Swiped my card, put my pin in. The clerk started handing my wife and I our things. She handed my wife a GPS that wasn't ours. Checked the receipt right there in front of the clerk and realized she rang it up and we paid for it.
Those SOB's wanted to charge us restocking fee on an electronic item. After exhausting all common sense, we had to leave with a promise of a check (full price) being mailed to us. Took 6 weeks to receive said check.
And just recently my fathers good sam's gps acted up(6 mos old). We were on the road and stopped in a store in Virginia. Didn't expect much however they swapped it out right there on the spot.