The issue is that it could not be sold: it was particularly low-powered even for french cars of the time, the original model barely reached 40 mph (out of a 9 hp engine), and the later fastest models topped out around 70.
The 2CV had literally been designed to cross freshly ploughed fields and drive on unpaved roads, it just was not suitable for the interstate-expanding American market.
She still have it but drives a ‘74 beetle daily.
I remember (when briefly living in LA) that we drove it from LA to Las Vegas in july (also in the mid 80’ies). It was HOT!
People always got shocked when the hood was piped open and showing of an engine that have the size of a lawn mower (relative to the typical V8)…
I am not sure whether the 2CV was ever sold in the USA, but it has definitely been imported. I think in the US, the limit is 25 years before you can import a foreign car. I've encountered plenty of 2CVs and Méharis in North America.
I lived in the USA in 70s and 80s. I never saw more than 1 or 2 Citroen cars in all of that time. And those two cars were stared at by everyone like aliens.