"Thank you, Captain," said Rosie, and saluted, more out of not knowing what to do with herself than out of protocol. She wasn't really sure that it was even within protocol. Oh well, when in doubt, best to be disrespectful.
Not to mention that she couldn't help but be a little relieved that she was no longer ordered to go and file a report on the lieutenant. All she really needed was a direct order to snitch someone out. That could complicate her life in the fleet, for sure.