Even sailors who did every official thing right are having their boats seized by the Mexican IRS. Richard at Latitude 38 has reported this best and most completely. And Profilgate was also seized.
http://www.latitude38.com/lectronic/lectronicday.lasso?date=2014-01-22#.UuA1dNLTkQU
and a video.
http://www.youtube.com/watch?v=ae4TQTSRfiQ