call a Tow Tug?
(maybe they have a slimjim, otherwise, they'll have to break a window in the bridge)
Onstar >>>that's priceless....

picture this conversation:
Onstar>"Hello Onstar... how can I be of service, Captain Stubing?"
Captain>"I've locked my keys in the ship."
Onstar>"Do you know which ship is yours? I'm flashing the lights now..."
Captain> "Yes... that's mine."
Onstar> "I'm sending a code now that will lower the gangway. And I'll stay on the line until you are all safely aboard."
Captain> "Thank you so much."
Onstar> "Would you like me to start the engines as well?"
Captain> "No thanks, I'll have my engineer do that."
Onstar> "I'm also showing an indication that you are getting low on lobster... shall I order some more?"
Captain> "That would be nice."
Onstar> "You have a great cruise now..."