Are you dead yet? Is the signature on your DL legible/forgeable, in low-light- for the bill of sale you wrote out to me three days ago? Do you carry a NICE pistol- keep in mind this may bear on question # 1?:image035:
Seriously, assuming PD is not immediately available, and I'm not busying my hands with immediate life-preserving actions (and you are not coherent enough/capable of retaining your weapon) I would clear & safe it, show it & all accessories to my partner(witnessed & logged in the run report), & hand it over to LE or hospital security at the first opportunity.
While I, personally, would not want my weapon handed to LE/Security (I know my own level of integrity- no one else's), as a care-provider, it would pass the liablilty buck to "Appropriately Authorized Personnel". Some localities may have written protocol, but at the time I was active, we did not, so that would have been my considered course of action.
Edit to add: Your CCW or lack thereof would not be my concern. Your appearnace might dictate how I would be in handling your weapon (preserving a decent guys hardware or preserving for trace evidence).