I am not from Arizona but this May be a question to pose to your local Sheriff, hopefully you don't live in city limits.
I do know gun owners who suffer medical conditions that have "green cards". They keep it very close on who is allowed to know.
If he don't prosecute medicinal than your only worry is the feds.
I find it a shame the government is involved in these personal issues.
You may just have to do a personal risk analysis and make some tough decisions.
Keep your chin up and keep fighting!