At 2:34pm I swabbed myself in the car in a drive-through behind Walgreens. Reservation made Saturday. Wait in drive through 5 minutes.
At 3:07pm I received an email the results were in. Click on link - negative for Covid.

Abbott laboratories test. Obviously the Test equipment was in the Walgreens itself and moves around to different sites.

They could to this Test at origin airports, Gates, connecting airports and destination airports like SXM.