Last time i had my blood drawn (Lab corps) the check-in screen said water and also coffee were ok and still counted as fasting. The coffee had to be black, I'm pretty sure. But i think sugar was allowed for some reason.
Also, a doctor once told me that something my son had eaten (he forgot to fast) was fine, and it still counted as fasting. The reasoning was along the lines of no protein, or fat, I think. Something to that effect. As long as the body wasn't stimulated to squirt out gall bladder juice, it was fine and the tests would be accurate.
Of course, we're not talking about blood sugar tests here.
Maybe the 50 mile drive can be managed w black sugared coffee and an apple. And a roll with jelly! How's that for fasting? Really, I think food quantity was involved in the equation, as well. But if your doctor knows how to converse with a patient, maybe all is not lost and they can give you acceptable tips.
Asprin for what purpose?