When I was young, we would pass the covered wagons up at 70mph but I gradually learned to enjoy the trip as much as the destination. Don't let local yokels pressure you into driving faster than you are comfortable with especially on twisty grades. When practical try for best fuel economy at around 55-60mph, pull over when safe to do so and let the parade pass. Also, change lanes on freeways with great care. Better to miss the off-ramp than risk a side swipe with a car or motorcycle in your blind spot. GPS helps plan ahead for off ramps and merges.