In this age of legalism, say no more than you have too until consulting an attorney. A written statement might useful to read to remember what you want to say, but to just hand the card over and expect that to be it until the lawyer arrives is off. If on the street, the Officer will not know the facts of the situation and have to treat you as a potential suspect and at minimal place you in custody. As one poster stated, once the Officer arrives, id place my weapon on the ground, back away and await insturctions from the cop.
Keep in mind I live in Illinois, so it is highly unlikely i face such a matter since we are not allowed to CCW. In my case the situation would go more like this.
Robber: "Gimme yo $$$"
Me: "No way sucka, come n git it!"
Robber: (draws guns and fires) "aight, hows bout dat!"
Me: "Ugh Arrgh sigh" (as i lay wounded, dying or dead)
Luckily I work in a gunshop, so I am usually within reach of a weapon at home or work
