I got a delay once. I was buying a gun at Wal-Mart and my NICS background check was delayed, I told the clerk that I had more shopping to do and would check back later. About 15 minutes later I was informed via intercom to go to the sporting goods dept., where I was able to get my gun.
I think my favorite LGS uses that "delay" bs just so I'll go browse the racks and shelves for something else I just gotta have!
I'm heading out in a while. I'll see if I can get some info. On the bright side, I get to pick up some new steel and wood today!
He didn't ask. No big, because they are now all snug and put way and I have some new gun manuals to read.