The first step is to decide whether you want to contest the ticket in court or if you want to admit guilt and pay the fine. If you decide to pursue to former, you want to look up traffic ticket lawyers, pro bono or otherwise, who provide affordable or free legal aid for parking and speeding tickets.
If you are looking for financial help to pay for traffic tickets, you should look up suitable speeding and parking ticket programs. Do not forget to check churches and charities!