you might be able to call it in, but i think you'll need to go back to the store. the way it's supposed to work is, the glasses are not supposed to leave the store. they are supposed to be shipped out for etching FROM the store. that way, you can't damage them and then blame the damage on the company.
apparently a lot of o-store employees are not being trained properly in this process. when i bought my custom crosshairs and the custom case kit, they told me i could take it all home and think about what i wanted etched on the lens, and bring it back when i was ready. but it's not supposed to work that way. fortunately they still let me redeem my certificate and they sent my glasses out for me.
hopefully, since they technically made the mistake, they will still let you redeem yours too. i imagine this same scenario is taking place at lots of o-stores and i would think they would be just as flexible about it as my local store was.