Is an extension on probation and a large fine a possibility and how do we go about trying to fight for it.

s arrested over a year ago for possession of a controlled substance and a warrant for a dwi I got 3 year probation, a fine, and community service. a week ago I was pulled over while riding in a friend's car to get food for my wife and son. The owner of the car had an MTR so they searched the car and they found a pill bottle with meth inside and I was charged because it was under my seat. But it was the drivers. as soon as we got pulled over she let me know that she thought she might have a warrant and to find someone to drive their car home so when they approached us she complied and when they went back to the car I started calling people to see who could help. And she must have thrown it then because I wasn't paying attention. Then after they cuffed her she kept begging for me to take the car so the officer asked for my ID to make sure I could drive and it turned out that I had a warrant for unpaid ticket from years back. And that's what my MTR was for.