The help of a lawyer is required

Colleagues, the help of a competent lawyer in the field of transport is required, you need to challenge the fine on the weight and size control frame, a letter of happiness for 600000 rubles came, our car in the Tula region during the period of drying roads carrying out international transportation of cargo (animal feed) drove under the frame, maybe someone has contacts of a competent specialist, I want to try to appeal