He did this basically all the way down this road (we’re about 10ish miles until it opens up to 2 lanes). I caught a glimpse of him doing it to an 18 wheeler at an intersection which is when I could no longer see him.

People usually do 10-15 over the limit on this road (dangerous road, high crash rate and fatalities) and we were doing basically the exact speed limit. However, we get a dotted line about a minute down the road from this point which is what I used to pass safely. I think he might’ve done this to all the vehicles behind me as well because one moment he wasn’t there and then when I looked back again he was right behind me.