I replied to the email asking why some stores don't have the sign.
"
How come some of your stores in other states do not have these signs?
My local Phoenix, Arizona stores have these signs.
I also read online that one of your Colorado locations had the sign
removed.
<http://www.cssa.org/legal-QA.html>
http://www.cssa.org/legal-QA.html
(About half way down).
I am also told that some Costco's outside of Arizona have
no such sign.
"
Here is their reply:
"
The only information we have available regarding our firearms policy is
the information provided by Camille. If you have more direct questions,
please contact our corporate offices at 1-425-313-8100.
Heather P.
customerservice@costco.com
"