When Monday and Tuesday passed by without any problems and Lena didn't see the car she spotted from Sunday following them either day, she felt less concerned about this and was drawn to believe it must've been a coincidence that her mind jumped to because of how on edge she was.
The only mystery that hadn't yet been solved by Romeo or the crew she had assigned to it was who the man who had returned Samuel's wallet was. He had apparently completely disappeared into thin air. One would imagine that this would be normal since he was a stranger they knew nothing about. The one problem was that the crew Lena assigned from her family to find out about him had an extensive network that hardly ever failed her when it came to finding out anything about anyone she was curious about even if all they had to go off of was a picture or description and nothing else.