You can negotiate politely in that scenario and the warden does have discretion. I have gotten out of tickets that way when there were mitigating circumstances

You can negotiate politely in that scenario and the warden does have discretion. I have gotten out of tickets that way when there were mitigating circumstances, but I was clear to say that I understood if they still had to give me a ticket. People yelling at traffic cops aren't really negotiating, they are just releasing anger.