Eduntz,
Thats the point...I didn't have a receipt.  Thats Autozones way of not
warranting parts/items.
They know how often cars are bought/sold so if they come up with a lame rule
like that,
they will save a fortune.  The reason I didn't bitch at the time is that the
battery looked pretty old, so I figured I wouldn't have gotten much "prorated"
off the new battery anyway.  I think
by and large, most battery warranties are a gimmick anyway.
james