Yes the fact that half of the country was on the roads all the way up to the Loire and lower will never been emphasized enough. some refugees were straffed by Stukas, reinforcments were blocked , cars broke down , horses were stolen , people were mugged or killed and their car /belongins stolen , houses were plundered by starving civilians, by soldiers( from both camps), people were thrown on the roads by force , even those who did not want to leave. Add to this refugees from Belgium, retreating troops, some deserters, and the fear of the fifth "collumn" and you can imagine the distress of these poor people who neither had news about those thye had left behind or their house. If you are intereste din this I recommend the book by Van Wehrt called Frankreich auf der Flucht (1940) . It is obvioulsy propaganda but he is nevertheless a journalist who travelled with refugees across France all the way to the Spanich border. He was there as a German civilian and arrived at some places before the army.

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