She could have been ghost, but it also looks like she has found the perfect way to help people out without having people kill her. Lots of people nowadays are too afraid to pick up a hitchhiker... You two were feeling creeped out. So she reversed the creepy feeling upon you two... I think she's a genius
(or maybe it was just a man in drag.. that would explain why "she" didn't turn around or speak
)
LunchBox, how does Mrs. Mac play games?