You have to fight more creatively than that. As others have noted, many authorities cynically use situations like this to "generate" revenue. They've set the system up to make it difficult to fight and change. Going through whatever process they set up is not likely to have any effect.
I tried their system on a red light camera ticket. Had my evidence that their yellow was too short and requested a hearing. The hearing was a total kangaroo trial. My evidence was ignored. It was picture number one showing that the light was red before the car crossed the painted line, and picture number two showing the red light and the car in the intersection. Verdict: guilty. End of discussion. That the light in picture number one would have been yellow if it had been set to the correct time was not considered. The judge advised me that I could go on to municipal court and raise that question there, where it would be considered. Well, maybe. But I was through with them. What would happen next if I went on? The muni court would rule against me and tell me I could appeal?
They've also cunningly set their shakedown price at a low enough level that it's not worth fighting. The ticket was "only" $75. I fought anyway, but lost of course. Also, to dodge around the requirement that the accused gets to confront the accuser, they made this an offense against a city ordinance, not a traffic violation. So you don't get screwed by your auto insurance company seizing on this as an excuse to consider you a more dangerous driver, and raising your rates. This dodges around another problem, which is that they have nothing to show who was actually driving the car. They simply fine the owner, never mind who was driving.
There's a flip side to this weaseling out of those legal requirements. The simplest way to fight is to refuse to pay. Their power to compel payment is much more limited. They can't put a black mark on your record and have the state stop you from renewing your driver's license or car license, because it's not a traffic violation.
So, what to do? I can't vote against the politicians who set this all up, as I don't live in that city. I can however boycott businesses in that city, and I do. It's not just pure revenge, it's also prudence. I don't risk any more tickets if I never drive there.
In a similar vein, I fight against the MAFIAA creatively. One can pirate, of course, and millions do. But what I did was dig into the backgrounds of the people they use in their battles to terrorize ordinary citizens. Specifically, their expert witnesses. In one case, the witness was affiliated with a university, and was using their name. I inquired of that university's provost whether they approved of this activity by their employee. Turned out, they didn't even know about it. And when they found out thanks to me telling them about it, they definitely didn't like it. Haven't heard a peep out of that expert witness since.