Then make a request: "Would you please pick me up on time tomorrow?" Preferably using a kind, non-judgmental tone of voice. I know, it's hard, but you're a grown-up, you can do this.
I'm not a huge fan of the Music here, although it does enough justice to serve as suiting background music, and it's devilishly catchy. As I write this the damn overworld theme keeps running through my head. Please Kill Me. Only the dead can be at peace from this suffering.
Don't rush to unpack. Living out of your "important items" bags for a few days will help take the pressure off everyone to hurry and settle into the new house.
An existing home is in an established neighborhood, where values can more easily be justified. Existing homes can be in a school district with an historically high rating or be located closer to downtown or gid=0; docs.google.com, employment opportunities.