I spend some years in an environment just like that - dress code, be-at-your-desk with pencils up at precisely 8:00, etc. Also interviewed for officer position in similar environment except that the room was huge and the president sat on a platform up front to watch over all. The interview also included a day-long psychological exam that I failed (they said I was too aggressive because I drove a 68 Dodge Charger). LOL, those were the bad old days.
It wasn't the black 68 Charger, it was the sawed off Winchester 12 gauge you insisted went with it. (Bullitt)
Well, it all depends on what the definition of the word "failed", um, is. I'd say you passed with flying colors.