GRiSO Sighting (S.C., USA)

This a.m., Sunday, 18 Sept., about 9 a.m. or so, southbound on I-85 between MM 16 & 15 (i.e., near the Georgia state line.

I was driving northbound in my POS (tho beloved) old Toy p/u, pulling an empty trailer, and heading home from Atlanta.

Saw a GRiSO; too fast to see if 1100 or 1200, and think it was black -- tho, as I didn't get any coffee until the QT at Anderson, I am only certain it was a GRiSO with its unmistakable lines and two-into-one on left side.

Kathi thought I was insane -- as I quite possibly am   -- when I started yelling "That was a GRiSO!"

Anyone here?  And why were you on the slab instead of some of the fine roads to your north?  

Bill