Originally Posted by virtualtroy
At check-in ask if it would be possible to use the lounge. Your BPs should be stamped accordingly so that you can pass through international immigration controls to the Sala VIP. As observed by others on this thread, that doesn't mean you won't face a challenge from immigration officials - many of whom don't seem to understand that LA has this arrangement to let departing IPC pax use its Sala VIP, which is located in the international departures area. All that should be needed is the correct stamp on your BP, however occasionally you'll need to go back to the check-in area and request an escort.
While I've no doubt that this should work, my wife and I asked 3 or 4 different people (including both comodoros check-in folks) and were unable to get anyone to budge on this. I believe their excuse was that that day's IPC flight did not continue to PPT. Anyway, be prepared possibly to hear "no." Of course, if I had it to do over again, I would fight harder. Starting in MRY at 6:00am left me with little fight, though.
