Out of State Ticket
I received a red light camera ticket in Tucson where I live. They tried to serve the court paper every other day 2 weeks before the court date. I did not open the door. They must have dropped the case because I did not received anything for 2 months. A few of my friend avoid paying using the same strategy in Arizona.
It is going to be harder for them to serve you and I don't think they are going to because you are out of state.
If i were you, I would report lost of my credit card so that Avis cannot use your credit card to pay the fine. If I can beat a local red light ticket, you should be able to beat an out of state ticket. $400 is a lot of money and CA need you to help their budget problem.
TY