Here in Miraflores now. This was incredibly useful advice. I booked the Aptus test on the teleticket you mentioned. You can choose a 2 hour window where they will arrive at your hotel. The tech arrived right in the middle of the time window, I was swabbed and had my negative result within 20 minutes. Medical certificate pdf delivered to the email registered when signing up for the test. I am now free to move around the country. Cost was 150 SOL. ~$40 even. As far as the arrival experience. They checked my preflight antigen test and that I had accurately completed the online health affidavit. Ordinary transfer to my hotel and self quarantine there in the honor system until the morning when I got the new test. All very easy.