Originally Posted by
HNLbasedFlyer
You really have to make a colossal mistake and miss clear warnings even if you don't preclear. And UA is pretty good about directing people to preclear.
As soon as you click the Covid NAAT/PCR test exception box on the safe travel website a popup comes and clearly says in bullet #1
I suspect he didn't upload anything and just boarded (which you can indeed do). Needless to say he didn't feel like talking about it as he was pretty PO'ed about the whole situation so I didn't probe. I told him to re-test right at SFO which he planned on doing.