Or they pass you then slow down
Had someone do that to us a little while back. Coming home on Mt Lindsay Hwy near Beaudesert, sitting on about 95 in 100 zone, with the CT on the back. Saw another fourby coming up behind much faster than us, so slowed right down & pulled over to let them past. They then slowed down as well & paced us. I stopped & waved them through but they also stopped for a few seconds then drove off
Pulled back out & accelerated only to have to immediately slow down as they had only got up to 75 (still in a 100 zone) & stayed at 75 for the next 5k or so before pulling off at a house for sale.
They were lost? They thought we were the real-estate agents (with a CT on the back!)?
You sometimes just have to wonder - WTF