I'm not sure what I think happened, but here is a possible scenario.
I think this has been mentioned before, but I'm going to bring it up again.
Lets say for instance that A felt she was being followed while travelling to the bf's house. Maybe in the parking lot of her apartment complex. She goes an "interesting way" (Hardy to Rio Salado in an attempt to get to Scottsdale seems out of the way) to try and throw them off, speeding around a sharp turn, and then crashing the car (not on purpose, of course). There is a witness who tries to help her, but she keeps going in an attempt to avoid whomever was following her. They pass her and the witness vehicle while she's maneuvering off the median. She rolls her car on the rims to a nearby side street, thinking that she has lost the people following her. She walks back toward her apartment, but those same persons run into her again. She calls the bf (because when I think someone is strange near me, I want to be on the phone so if something happens, someone knows immediately) but he doesn't answer. Finally she calls a cab, and decides AMPM is the place so the wierdos don't follow her back to her apartment and find out exactly where she lives. On her way to AMPM they ride along side her slowly and she decides to be cordial and talk to them while she's walking. She's alone and uncomfortable, so being polite seems the best way. The Taxi driver calls, she says "In a minute" tells the people she's talking to that she has got to go that the taxi is waiting at the AMPM, so they say fine, see ya, and leave. They wait at the AMPM but see the taxi driver looking for her. She keeps walking to AMPM, but they see her coming and stop her in the parking lot of O'Rilleys. They force her into the car or tell her they saw her taxi leave and they'll take her were she needs to go. She gets in (either voluntarily or by force) and they take off.