How does this work, if i buy a ticket online can i use it for any time or do i have to show up at a specific time to get the ferry. Does is save time standing in line, if I get my ticket ahead of time? How long are the lines to get on the ferry usally? The website said something about arriving 2 hours early, thats ludicrous. I cant see my 72 year old mom standing in line for 2 hours. please give us some advise how this works.