You suggested their ass was on the line..... As I said, I have done it a couple times, no big deal.
I don't disagree, however in my experience most people don't take too kindly when some Jonny Foreigner rocks up and tells you that they know your own country's laws better than the person who fills in the paperwork for a living does.
Welcome to the USA.....
Good luck find an FFL who knows what they are doing down in Austin I presume from your profile...You may have to go FTF. Easy to fool Texans with just a DL.