I was driving a car in New York state and was pulled over for a standard stop for drunk driving. I had a bag on the passenger side of the car that contained my medical marijuana that was legally obtained from where I live. After I was asked strongly by the officer what was inside, I told him that it was medical marijuana and that I had a prescription, which I showed the officer. They still performed a sobriety test on me and the officer concluded that I was impaired enough to be arrested under the suspicion of driving while impaired? I don't know whether there is a DUI statute in New York and I couldn't find one when I looked online. I don't think I was impaired at all and I am probably a better driver when I have my medicine because it gets rid of my headaches and pain and allows me to concentrate completely on driving. Not sure what to do next and whether I need a lawyer since they can't prove I was impaired and don't see how they can. I also have a prescription and had the legal right to possess the medical marijuana. Suggestions? Thank you.