The current laws are sketchy........regarding both caregivers and dispensaries...... I would assume you'd be ok, but it's a totally grey area....
I have the same type of issues......I am a caregiver...but not a patient. There is a stipulation in the law that says you can NOT be your own caregiver......and that between caregiver and patient you are allowed 3 immature and 3 mature plants plus 2 oz of product.....
To be sure you are on the right side of the law....you could get a card, name the other caregiver as your own....then it's all legal. Otherwise, they could be prosecuted for distribution to a non card holder....... I would say the risk is very low in any case.....but covering your ass is always a good plan.
I would love to go to the dispensaries for clones, to be able to offer some variety.......but I don't want to pay the $290/year just to be able to do that.. I'd love to see a caregiver's co-op for this kind of thing.........I believe if no money changes hands, merely swaps .....the legal issue is gone. Caregiver's are allowed to possess within the limits...it's sales that have legal boundaries..
You could certainly ask a dispensary.........All they can do is say no.... I've wanted to, but figure no is the likely answer so I never have..
As far as being mobile....there is one that does delivery only..... as long as you stay within the limits and have the docs with you....there is nothing against transporting....
Stay within the law, seek legal advice and always maintain caution............There are still laws against all of it.......but the stance has softened... very low on the prosecution scale.........
Just my somewhat educated thought on the matter.