We dont have such laws in my state, and I have never asked for it, but I would imagine that you would need to have an honest conversation with the MD that you would prefer not to smoke, and would prefer food based products.

I think (not sure) what happens is you get your prescription and then have to go to a special shop that sells the stuff. They will help you pick out products that you would like to try.

please come back and let us know how it went, and what happened.