Yeah, but his DS should remember that it is not the organisers who decide the winner, but the UCI judges who were still checking the photo!
Ag2r DS, Julien Jurdie, said he heard it on Radio Tour and told Cosnefroy. Certainly, the guy at the finish in the Amstel Gold jacket standing between the two riders did not appear to say anything to Cosnefroy to prompt the celebrating. Cosnefroy has been reported as criticising the race jury, but his comments seem somewhat confused, maybe because they were made during the post-race confusion.