Georgia, I had my boarding passes when I did online check-in with Delta. No agents for boarding passes. The only people interested in seeing the EHAS was on the SXM end. You could show the QR from your phone, or have it printed.

If you had not done it prior to your flight, they gave you paper forms and cordoned you off in a seating area at the bottom of that ramp that comes into immigration and arrivals. And of course, with approval being automatic you just get back in line.