Lets say that you are off duty and for the sake of this scenario you have a scanner in your personal vehicle. Your state does not have a duty to act law and you are not in uniform. You hear a call go out for a man down, not breathing. You recognize the address as less than 1 block away inside a fast food restaurant. The dispatcher did not indicate for units to stage.
The local FD and EMS agencies are busy today and you know that the units dispatched are probably 10 or more minutes away.
Do you go to the fast food restaurant?
Are you in an area that is covered by a volunteer or semi-volunteer agency?
Does this agency permit responding to the scene of a possible emergency in your POV?
Are you a member of said agency/ covered by their liability insurance?
If No to any of these then ABSOLUTELY NOT.
If No to any of these why do you have a scanner?
Who or what is going to protect/ cover you if YOU become injured or your property is damaged on the way?
Forget about Good Samaritan Laws and Duty to Act. Think about your well being, turn of your Whacker Box and go watch a movie or another episode of Emergency!
Now let's all take a breather and wait 3 weeks until someone else asks this question again.