Hi Bridget - if you're worried about being stuck outside security, don't exit security until 1:30. When you deplane from your U.S. flight, grab lunch and drinks before you exit the secured area to check in with InterCaribbean.

That said, we've used them 3 or 4 times since December and never seen their check-in counter empty but I'm usually there later than you will be.

Cheers,
Jason