As it happens, right across the street from Las Margaritas is a second hand bookstore called "Canterberry Tales" or something like that, which we decided to go check out for some amount of
time because it seemed open and a better idea than sitting in the Cool-Mobile for 30 minutes (cool though it is).
I don't have a pictuere of the outside of the place, but here's one of the inside. All of the outer walls of the store look like this, complete with little signs that say "Please do not touch".
I really wanted to ask the lady if she had Frank's Maritime Atlas, which I noticed high up in a pile much like this one, just to see what she'd say.