Not really, you're going to meet a whole heap of people in your first few days. It's pretty overwhelming! They person who ran you through some software but otherwise isn't a day-to-day contact isn't going to stick in your head for long!
I remember all my (good) instructors.
More so if the lesson was 2 days ago.
Heck, janitorial staff should get more than ignored.
So yeah, odd to drop into such a divide.
If everyone is rushed and miserable, they aren't going to be throwing out pleasantries as they rush through the halls.