Can police stop me because he assumed I had a expired inspction?

[scetch27]

I was recently pulled over by a NY state trooper because he believed my inspection sticker was expired. The sticker was issued by the DMV as a 10-day pass, enough time to get the car inspected. After he realized my sticker was legal and not expired he asked for my licens and ran my name. I was arrested for driving w/ a suspended licens. Now I understand driving w/o a licens is breaking the law (duh) but I had no other way of making it to school or work so I had to take my chances. Now I know cops can come up with reasons to pull a driver over but he stated that the only reason i was stopped was cause my car stood out (because of its old rusty condition), so he said he assumed the sticker would be expired on a car like that. He even joked with me while he was booking me about it. Sounds fishy to me..... is there a way to get the case dismissed?