Maybe you got one from the switchover to the new flash. It wouldn't be unreasonable to be concerned that it might have been subject to heavy testing (and accompanying wear.)
I've sent Eric Ryder pics of the drive front and back showing the sticker and the serial.
So far, their only response is to remove the sticker, use the drive as normal and warranty is unaffected.
I guess it is possible that there might be an additional response after someone at OCZ inspects the pics.
For now, the drive seems to be working fine. It came with 1.10. Took 1.3 then 1.4 and is operating normally. Going to use it for a few days and see what happens.