i'm usually not tired when driving - i mean, even though i may be exhausted, i am usually pretty live when driving....although there is one trick that never fails for me anyway..
when i feel myself get tired, i take a stick of Winterfresh gum and chew away.
I think it's the fresh taste or the sugar that gets me, but that has worked for me everytime!
also, i'm very glad you got out of that situation the way you did.
drive safe!
