strange things happen at quitting time

Back in the 70's I was pulling a low boy and dropped a piece of equipment off at a jobsite close to LaPorte Tx, just before quitting time. traffic was pretty thick, but I was in the hammer lane on 146 headed south, when the foreman passed me and motioned for me to stop at a little store down the road and get something to drink. I started trying to get over, but a car had pulled up along side of me, and kept slowing as I did. I finally just stopped and so did he, he just kept looking straight ahead.
I got out and crawled over the hood, and with my feet on the fender and my elbows on my knees, just looked at him, he never looked up, til I ask how he was doing. lol
Cars behind us had been steadily honking their horns, and this guy never paid any attention, must have been day dreaming about something good. Once I spoke to him and he looked up, he peeled out of their. lol

 

I did not get the impression that he was impaired, could have been, but I didn't get that impression.
I have had cars follow me into scale houses before, just riding along in a daze sort of. lol

 

I pulled a team load with a guy once and he didn't want to drive until we had gotten out of the Dallas Forth worth area, so once I was north of Ft worth on 285 I climbed in the sleeper, and told him just stay on this road, i will wake up before you need to get off. He didn't go 20 miles till the truck was braking hard and leaning in a hard curve. I got up and he was stopping at a stop sign on the bottom of an off ramp, he took it thinking he was following the highway. lol