That's a very Aziraphale take on rules, which tracks for someone who's studying in a library. Everything that Sam says continues to be very Aziraphale, and he also wonders about Bunny and Dan and the rig.

"Have you met Aziraphale? White hair, kind of fussy? He was somewhere else, before this." Not that he's snooping or anything. He might address the rest of what Sam said in a minute, once he's less distracted by his current thought.