Unfortunately lots of teams have sued their fans over tickets but as of now the Jets have never done so:
http://consumerist.com/2009/09/03/dont-have-5300-for-season-tickets-the-washington-redskins-will-sue-you-into-bankruptcy/
http://www.huffingtonpost.com/2009/09/03/nfls-redskins-sue-season-_n_276158.html