The usual procedure for alerting folks in the left lane that are traveling slower than you are, is by a couple of quick flashes of your brights or by turning on your left run signal..
In this country most would just assume you forgot about your signal..

and keep on driving, hence the brights.
If he didnt use them, that means he was being extra polite because it was night and didnt want to blind you.
The greatest breach of driving etiquette known to me, is ; not moving over for the faster car on the left lane.
Even when I go 95 mph, I <always> check my rearview, for a faster car, every few seconds and move over immediately when one approaches.
If I was in left lane with the road clear ahead of me and I noticed someone behind me, I would be embarassed at my error for not already being in the right lane, pull over in a jiffy and even apologize with a handwave.
As a rule of thumb:If the road is clear in front of you , no one should be able to tailgate you, as by the time they are there, you should already be in the right lane (assuming its clear).
I think todays "drivers ed", skips all these "road rules", so as not to encourage speeding, which is why many younger members are unaware of these basic rules of the road.
Tailgating is bad, but he shouldnt have been able to tailgate, if ettquette had been followed.
When I think of tailgatin,g I dont think of someone communicating with you, but if the road is clogged all around and for no reason moving too close.
I often notice keeping the proper interval and someone will just slip in, turning you into a tailgater for a second or so, until you can brake to re-restablish proper interval,And then another guy slips in.
Sigh, I really wish Drivers Ed would cover basic behaviour rules on the road.
Much of so called "Road rage", is due to 2 drivers going by seperate rules, one by proper ettiquette and the other by none.
And they both think they are in the right and that the other made the driving error.
Fred...
