Hello Torog. Do you have a MedMarijuana liscense in your state? If you do, the law that applies to your situation would be different than if you did not have the liscense. Arguing the law is easier if you can argue within the framework of the state statute that granted you the liscense (in Colorado there are some neat defenses built into the law). If you are not a liscense holder, a 1988 ruling would have to still be good law in that it would not be over ruled by now. You have to go to the case that held that ruling and "sheperdize" it to confirm it's still valid. As for the tshirt, I think it would only piss off the judge, a bad idea. Try a suit instead. Good luck, my man. The law is just only if you get off! Really, all the best.