I just did some Googling and found this:
Seems like it would catch a first-responder's eye.
Fill out an ICE card (link provided for illustration- you can easily print off your own for free) and put it in all of her bags. If she carries a cellphone, put the emergency contact info on the lock screen. Also, enable location sharing. Your family will have to learn to be vigilant. Never leave them in a vehicle with keys, put a bell on the door that will alert you when it opens.