What happens next?

How to fight a red light ticket in california 
Read the citation carefully. 
If your vehicle triggers a red-light camera, a citation will be mailed to your address within 15 days of the incident. This citation provides information about the incident as well as instructions on how to pay the fine or contest the ticket.

Possible answers:
[1]. Check if it's for your insurance. Your policy is most closely related to the red light ticket, so it must be included in your insurance policy..
[2]. It contains information about whether the citation is valid or invalid, but it does not directly provide information as to why it was inaccurate. It is then required by law to legally cancel the citation in the event you are unable to pay the payment..
[3]. The citation will probably direct you to the correct court in your jurisdiction to contest your ticket. Since some citations are valid for years, they usually expire immediately..
[4]. Check the date and time of the incident, and review your own schedule. This can help you place the incident and figure out if you were driving your car..
[4].