I can absolutely get on board with this scenario. The only problem I have now is up until we had a POI I thought possibily the meeting in the park may be due to the fact the man was married which would make sense not to have ML show up at his house. Now that we know he is not married it doesn't make a lot of sense for her not to be dropped off there unless,
1.) He was lying about who he was his money, didn't want her to see his house and possibly not come in, etc. ( I tend to dismiss this idea more because of the cell phone being turned off)
2.) Or, this had to have been premeditated which explains the meeting at the park so the driver wouldn't have his address and he would be able to get her to turn off her phone.
Still reserving judgment.