Plenty of situations where this meme applies. In Seattle the West Seattle bridge was out for almost two years. People were routed underneath it where there were two lanes, one that routed into a forced left turn, and one that proceeded straight (where 80% of people wanted to go). Without fail, a huge number of people would "zipper merge" into the right (straight) lane and skip the huge line. Seattleites are such pushovers that they would always let these line cutters in. Which slowed down traffic for everybody: both the people trying to turn left (because they were stuck behind these jokers trying to force their way in) and everyone else who was patiently waiting their turn to go straight.

Seeing people on the Seattle subreddit try to justify this antisocial behavior with false notions of zipper merging was truly enraging.