I wouldn't have waited in line for 7 hours period... I would have turned around an got back on the ship... If I was in a foreign port and they did this I would not have gotten off the ship and assumed the country did not want my money nor my presence. If people got off the ship and realized there was a long wait to clear and then the SHIP would not let them back on.. then it is a cruise line issue.
Carnival Cruise Lines:
Fantasy 90, Celebration 95, Victory 05, Conquest 05, Spirit 6/06, Freedom 6/08, Holiday 7/08, Victory 6/09, Valor 9/09, Dream 6/10, Splendor 8/10,Conquest 8/11,Magic 11/11,Triumph 4/12,Spirit 7/12,Freedom 11/12, Triumph 2/13 - The fire cruise
NCL Dream October 2006, RCCL Mariner OTS June 2007