lalala:

Yes, I have seen it. Actually I lived a couple of times in a very small, very clean hotel in Rue Quacom.. near there. Every weekday night they closed the streets around Les Halles (the market had grown to big for the few halles). I always parked my car nearby on a big parking place, now Centre Pompidou.
When they moved the market to Rungis, the demolished the old halles. Now there is the entrance to the large Metrostation Chatelete with an underground shopping center. They should have kept at least one of the halles.

Later I visited Rungis. It looked somewhat like an industial complex or a parking (place/houses) for a big freighter/forwarding company.

I know their is a company called Rungis-Express, they deliver first class restaurants as far as Frankfurt, Munich with food from Rungis. BTW, I think my Supermarket needs a "Rungis-Express". No chanterelle etc. The only place I get something like this is at Dean & Deluca (N.Y. Broadway & St. Helena, Napa Valley).
When you like food, visit Harrods in London and KDW (Kaufhaus des Westens) in Berlin.