While the main contests they are talking about have the CA county restriction on it (in the first huge chunk of small writing), there are two other contests, with different restrictions mentioned on that page.
"When you request an auto insurance quote for a new policy, you’ll automatically be entered into an additional sweepstakes with an opportunity to also win five years worth of free gas; prize awarded in the form of $15,000 cash" is:
"Open to legal residents of Texas, Hawaii and California (select California counties only) who are 18 years of age or older at time of entry".
And also, "when you swipe your AAA membership card at a participating Approved Auto Repair facility, you could instantly win a $100 service voucher from AAA to help get your car road trip ready", which is :
"Open only to legal residents of TX, NM, HI, AL and the following counties of the State of California: Inyo, Imperial, Kern, Los Angeles, Mono, Orange, Riverside, San Bernardino, San Diego, San Luis Obispo, Santa Barbara, Tulare and Ventura, who are 18 years of age or older at time of entry and who are AAA members in good standing as of 5:00:00 p.m. PT on 4/19/12."
3 contests on one page.