I'll have to get a GPS lock on the road we rode last year that we nic-named
the Minnie Dragon, it was about 7 miles from end to end, and I don't think we saw more than about a half dozen other vehicles the whole way up & back.
In any case, at the most you only have to deal with 2 idiots at a time,
the one in front of you, and the one behind you.
In the half dozen times I've been up & down it, (twice in the rain) I only had one problem. 3 sport bikes overtook me from behind & before I realized they were there, (I would have moved over) the lead bike went blasting past me, he didn't cut me off or anything like that, but it gave me quite a start. I pulled to the right side and let the other two past & they gave chase to their leader, a half mile further down, all three of them were down. They all seemed OK, so I just waived & smiled as I went on by.