Those who went as far as the street report that the shoppers in the Friendship Heights stores were not distracted from their business, but kept right on. After about 20 minutes, so did the presenters. They did a good job despite the distraction.
I gather from what I hear that the shaking was more intense downtown. Quite a few buildings were evacuated there and elsewhere in the area. I must credit the builders of 5404 Wisconsin Avenue; on the fifth floor, the rolling and shaking was astonishing, but not by itself alarming--the notion that more might be on the way did trouble us.
Given that earthquake magnitudes are reported on a logarithmic scale, I think that 5.8 is plenty to satisfy my curiosity.