I was in Precision today, shooting the breeze w/ Kevin, and it didn't even cross my mind to ask about this. I'll ask him the next time I'm in there, if there isn't a crowd, and they have time to B.S.
I would have let him know that you were a LEO, and just explain the situation to them. They get a fair amount of customers who try and get their girlfriends/wives to buy firearms for them, knowing they won't pass the NICS instant check, and I'm sure they were just CYA.
Not to stereotype, or generalize too much...
Most of the people that do that kind of thing aren't of the same ethnic make-up I am. They normally are black, and appear thugish.
I am whiter than Casper the Friendly Ghost, and dress what many people call "Country"...at least my friends do. Almost always in a Polo shirt and jeans that are not baggy by any means.
I don't go around telling everyone I encounter I'm a cop...it isn't necessary. I don't expect special treatment from my job, so I keep my mouth shut. Would it have made a difference? I'm pretty sure it would have. Is it that big of a deal? Nah. I'm over it. I don't let things bother me for too long.
It was a small thing that just had me aggravated when I posted about it, and once I vented, I was over it. Not a big deal at all.