@Tod ********
Interesting that you mention that 'remember almost no airlines know that the visa exempt entry increased from 30 to 45 days'.
I'll be facing that issue in a few days when I fly out from LAX on EVA Air and have a return in 75 days. I have tried to contact the airline via phone and unable to reach anyone. And have emailed and Facebook messengered without a helpful reply.
So I will approach the check in counter calmly, smiling, and get there early enough so if I have to buy an 'onward ticket' I will be prepared.
I do have questionable confidence in airlines knowing the latest rules. Less than a year ago Japan Airlines was not aware that Ko Samui had the one-night quarantine scheme in effect and would not let me board my flight and delayed me till next day when I was able to get the 'proper' scheme to board.