hmm, I'm not a medical professional but I am trained in AED. I wasn't trained to use it on people who are conscious and have a pulse.
NIH site below appears to agree with the way my training presented it:
https://www.nhlbi.nih.gov/health/hea.../howtouse.html
Also, who owns the AED? that's likely who has keys. My neighborhood bought them and we all contribute for them and 50 of us have keys and are trained. 911 calls for addresses only within the neighborhood are assessed for an unconscious victim who may have cardiac arrest. Only then is a call dispatched to activate our network.
If a golfer on the course behind my house had cardiac arrest, our network would not be notified of it, even though I could get an AED to the victim more quickly than EMT's.