It was a miserable end to the season for Thierry Dusatoir's men, who were soundly beaten in South Africa in their other summer Test, and they were 19-6 adrift at the break. The second half turned into an even bigger nightmare as they conceded 22 points.
Julien Malzieu at least grabbed a consolation try in the second half, but it is back to the drawing board for France after losing for the seventh time in their last nine meetings with Argentina.
As for Contpomi, it was a return to his peak form as he scored two of his sides' four tries, added three conversions and five penalties.