I could not disagree more.
Your situation is exactly why I do not auto-dispatch
If I stop to render aid, I am willing to do only what I am willing to do. It is not all or nothing when i'm off duty.
I don't carry an ALS monitor (or even AED) nor do I carry ANY drugs.
Where do you draw the line? RSI? Cric? starting I.V.s? Carry spinal equipment? Pacer?
Nope, I am offering to open an airway, start chest compression only CPR, stop major bleeding, and call for help.
Biggest thing I can do is prevent further injury from bystanders or elements.
Besides that.... How big is your car?
Carry 02? LP12? Full trauma kit? IV supplies? Spinal gear?
Where do you put your passengers?