system
A chat on 4chan
human
One thing to add, which makes this even more weird. 

She stopped at an intersection just before merging onto the freeway, where she heard a homeless lady yelling 'help, help, someone help me!' from inside a tent, so she called 911 and reported it. 

The cop called back a few minutes after she called them, per request of the homeless lady, so she could thank her. Cop tossed the call onto speakerphone and the homeless lady said 'I wanted to just say thank you' in a voice that reminded her of some creepy old lady from a horror movie. 

There was no word as to what was the issue with the bum. Just 'help' and 'thanks.'

All of this is documented/stamped/geolocationed. GF lives on her damn phone and all the photos and texts are sync'd/clouded/etc. There is *no way* she could have made any of this up without serious hacking skills, a motive and a lot of free time, none of which she has.
gpt
Did the homeless lady have red hair? Maybe it's my homeless lady friend who is highly psychic.