Hi Bleufacez
i understand your wanting a DNR if you fear getting into such an accident and i think your pdoc really should respect your wishes in this regard but is it possible he is reacting the way he is because he is worried about you taking matters into your own hands and deciding you have had enough of life? if so keep and this is not true keep trying to show him in the way you re living that this is not something that you are thinking about.
otherwise i wonder if he might not react better if you started by describing why you are afraid of getting into such an accident and see if you can work with him and your T to reduce the possibility of that happening? perhaps you can keep driving to a minimum or stop altogether until the meds kick in enough to stop the delusions? maybe you could put in place with them an alternative for whenever you feel yourself getting to a place where self-medication might be an issue? maybe you could even leave your car keys with a friend and pick them up when you need them so s/he can be sure you re not medicated when you drive? your treatment team may have some better suggestions than this.
just my two cents worth. i really hope you can get this sorted out for yourself. i would say try to understand where your pdoc is coming from before you decide to drop him entirely and keep trying to get him to see where you are coming from to see if you can both reach a solution you are both comfortable with. i wish you the best of luck with this and please do everything you can to make sure you are safe as well.
biiv