Especially when he was planning on going on vacation in a few days. I honestly could see him opening the door to her if she used that ruse to get into his house. Then she proceeds to tell him whatever he wants to hear in order to stay there several hours, seduces him into the sex, and the rest is history.
MOO
Maybe he was getting ready to do the floors when she knocked on the door and that is why the cleaner was out and the furniture moved.
Sounds like the check could have been a good one too. Like you said, he was going to Cancun. And there is speculation he was having financial issues, maybe 200. was needed.
IMHO