[Geronimo '74]

Do you call the cops when you see old folks struggling along at a speed that is too slow as well??
Or when they come on the road just before you because they misinterpret your speed and you have to stand on your brakes?. (Because they think they still drive adequately, and are still able to keep up in today's traffic)
At least that guy speeding is still alert and aware of the speed he has, aware that other people go much slower than him)
I do not approve of the driving you explained in your post, not at all.
But on the other hand, I admit of driving faster than average, and some people might see me as a reckless driver too. When in fact, I am very aware of things around me and potentially dangerous situations. And I brake accordingly.

I voted for the ignore option.
Calling the cops is not an option. If everybody is calling the cops when they see a "reckless" driver, phones would be red hot. (Besides, everybody has a different standard when they make that kind of judgement.)
That's why we have cops in the first place, they are the ones to make that assessment, and what is more, they are legally warranted.

(and I do wonder, like Snipe, how you kept up with him for that distance. Seems like you weren't driving Miss Daisy either)