Can't recall if I posted this elsewhere:

A few years ago we arrived at SJO and go to rental car booth and I booked all the travel and I say that we've got a car rental with them (?Avis?Hertz?).

They ask if you I'm sure I reserved with them and I said yup. Here's the reservation paper and it was for the prior month (i.e. something like 9/28 and we were there on 10/28) - ugh!

Luckily they had cars available otherwise planned trips would require buses!