Call the traffic court and explain your situation, see what you should do to resolve this. I am sure you are not the first person that this happened to, they can probably tell you what to do, it is a common problem. Or mail them a check for the original $70 right now, with a letter explaining you never got the original ticket, ask them to forgive the extra fees etc, send it certified mail so you know they got it. - - - Updated - - -
How would the exact nature of the traffic stop change things?

