When the family is in the car and dodge is in the trunk. A sign for i75 North is shown. As would be correct, as the mother states they are headed home to Birmingham. Which is North of Detroit. Then a view from the Drivers point of view is shown and the Ambassador Bridge to Canada can be seen on the left hand side. This would mean the car was traveling on i75 South, Not North. Going North on i75, puts the Bridge on the right hand side traveling towards Detroit from the Downriver Suburbs.
When Dodge is in the trunk of the families car, The mother is over heard saying "before you know it, will be back in Birminghum". People from the Michigan/ Detroit Area pronounce the cities name as Birming"ham"