It could be worse. My Garmin led us (and the motorhome) through the famed 'Tail of the Dragon' (Hwy 128). 318 turns in 11 miles. In addition to the tight turns, there were tons of sports cars and motorcycles. Fortunately, our little 20' Argosy motorhome navigated it successfully. Lots of funny/shocked looks from the bystanders! We had a good time making funny faces for the photo booth guys!
I blame myself more than the Garmin though. I wanted backroads rather than the boring main highway. Moral of that story - careful what you wish for!