Not really.
Smart people? People who have been burned by not reading them in the past? I read them. I don’t mean this in a derogatory manner, but this might be a lesson for you. It’s not a corporate conspiracy to screw you over, or even a terrible return policy.
Of course, if you want confirmation of that, you could just go ask a lawyer. I don’t think you’ll be in the office long before they tell you that you’re S.O.L.
No you don’t.
I’m sympathetic to your situation, just not your point of view. I hope you end up getting a good pair of headphones. Good luck!