Did you buy it with a credit card? Most of them have additional protections that let you fix situations like this. Not sure if it applies to returns, but for instance I know you get a guaranteed extra warranty with anything you buy with your amex past the manufacturers, etc..
I'm considering this - but I used the boss's debit card so I'm not sure it'll work. Debit cards being "same as cash" in the USA, not sure those terms protect wrongful purchases. But - can't hurt to try.
I agree with the other fellow that you should avoid using them, though. You may have the same rights, but the potential consequences are different. A credit card which you pay off each month provides the same basic functionality but with more safety. Plus you get to make 0.01% of interest off the float.