King testified that it was this incident that changed him into a civil rights activist, because while he expected that in the south he thought in the North he was free from it and it shook him to his core to realize there was nowhere he would be treated equal.
The restaurant changed hands over the years and ended it's life as the Moorestown Pub, which they recently bulldozed to make way for an overpass. No marker there to note the significance of the site, in fact almost nobody even knows it happened. I heard the story from an old timer and did some research to confirm it.
My criticisms of King have nothing to do with race and everything to do with theology. Actually, at one time there was no such thing as jim crow. It was enacted by "redeemer" Democrats after Reconstruction. It never should have existed in the first place. If it hadn't, it wouldn't have led to a generation of radicals who got their credibility fighting it before moving on to their ulterior goals.