Northrop Grumman Software Engineer interview questions

Easy, pleasant, professional interview with questions like: what are your ambitions etc. Big company with what seemed lots of people hidden in their offices / cubes. Seemed very quiet around.

I'm sure the office I interviewed at doesn't represent the organization as a whole but I basically drove 45 minutes to a more rural location to interview for a developer position and when I got there, I was never actually greeted or introduced by anyone. Kind of just silently thrown into a conference room and questioned. Interviewers weren't interested in establishing any kind of dialogue or getting to know me. Was a pretty unprofessional experience overall and seemed like a waste of time for both parties.