I tried to find R&R instructions for the top without success so here is what I think. If the manufactures instructions require replacing the seals in question then Chrysler is responsible for costs. If the top can be replaced without replacing the seals, than the mechanic failed to follow them correctly. Therefor it would be the Stealership that is responsible.

This reminded me of the warranty provided by a knife manufacture. "Return the knife in the original packaging with the original purchase receipt for a full refund less shipping and handling." yeah. right.