Translation of unbutton in Spanish

We bought a Sandwich and were looking for a taxi, but the streets were so crowded that we had to wait nearly one hour to find a cab. We even had to walk a few blocks in order to catch one.
We drove to the next spot exactly at noon. We were told that this spot would not be crowded at all during the lunch hour and we were not surprised to find it completely empty without anyone else.
The next two hours we were busy with moving our stuff to our new place and organizing our trip to Machu Picchu for the next day.