If the government has cameras then the footage should be public record and available to the public to download - street cameras, body cameras, security cameras, etc.
If you are ticketed based on camera footage (not the testimony of an officer who was at the scene as a witness), then footage from these camera systems should be enough evidence to prosecute government malpractice when it occurs too.
I suspect that won't be the case, but California should not let it's government uphold a double standard wherein citizens pay fines while footage is guarded and not used to prosecute police/politicians when they're on the other side of the law.