Hertz - SFO coupon codes???

Is it just me? I can't seem to get ANY of the coupon codes to work while trying to book at the SFO location. It doesn't matter if I do it logged in as #1 Gold or not logged in. I'm trying to book for 7/17 thru 7/23. Any ideas? Thanks in advance for your suggestions.

I don't know if this helps, but I booked SFO Hertz using a coupon code at the beginning of this month. Perhaps it's a system problem? Have you tried booking those codes over the phone?

I also haven't had any problems booking at SFO every weekend -- I usually use PC 955091 and 959884, if that helps...