After all that stressing out and frantically calling my MIL to see if she could sit in the car with the babies, she and my SIL picked DD up and brought her home. My SIL and BIL live 2 hours away and just happened to be visiting my ILs with their 3-year-old son today. My MIL is on our ok-to-pick-up list so it worked out great. But it was really intetesting to see other's thoughts on leaving babies in the car alone. Thank you for all of your opinions.