Hi mike
You can say that religious freedom allows you to smoke weed all you want, it is still against the law unfortunately. Here's a link to the case
http://workforcesecurity.doleta.gov/.../uipl_4290.htm

it basically says:
The supreme court ruled that a person's religious beliefs do not excuse them from compliance with other laws.
It this right ? no, but it is the way things are and to preach any thing else is a LIE!
peace
heart