We found the shoppette/mini BX, got some Subway for lunch, and checked out the ITT office (Information, Tickets, & Travel). On our way back to the hotel we found a small shopping center. None of the stores were open because of riposa, a midday break similar to that of Mexican siestas. Everything shuts down from noon to about 3/4 PM.
Now that we've explored some, we feel a little less freaked out by our foreign surroundings.