Who Was Driving?
When Mirabelle goes home to visit her parents, she is clearly seen leaning on the passenger side window of a vehicle.
The car stops, both doors open and close, she walks to her parents and greets them, then the three of them turn (after Dad does his requisite, "Hi. I've got post-traumatic stress" bewilderment take) and go into the house.
Who drove her there? It didn't look like a taxi. Wouldn't you ACKNOWLEDGE the person who brought your daughter to your door?
It just struck me as odd.