Nietzsche quietly mutters some less-then-pleasant verbiage, rummages in various pockets for the benefit of any watchers - and heads for a stairwell. If this place follows fire codes, he should be able to at least get *into* the stairwell, and then he can hopefully do the credit card or coathanger trick on the door onto the actual floor. If the stairwell is alarmed or looks like it has cameras pointed at it, he will come back to the glass doors and try to look like he vaguely belongs until he can follow someone in. If none of that works, he will look around for a cleaning person or someone who looks either low-ranking or unintelligent, and try to convince them that he left his card - but if they don't look like they believe him initially he will immediately change tack and identify himself as a P.I. who was hired by someone he can't disclose (customer privacy!) to look into the murder. The key is to raise as little ruckus as possible, so if it looks like all more-subtle ways are failing, he will give Christmas a call and grab her card at a dead-drop as offered and damn the arrogance for thinking he won't need it.
Folks, I tried my best to post during the week, but it wasn't really happening. I will try to be more active weekdays next week, but failing that I may want to step back to part-time status who posts mostly weekends.