My recent Brownell's order they wouldn't let me hold due to shipper restriction, but I didn't bother calling since I coincidentally was home that day.
BUT:
I had three different cans of surplus HXP 30-06 from the CMP held at a facility in Woburn. The first time, no one said anything or cared. The second time, the worker said "since this is ORM-D, we're not supposed to hold this, even if the website lets you do the hold." Figuring this was not correct, I had another one held a few months later. They made a huge stink about it, told me that ORM-D was forbidden to be held at a facility and if I ever did it again, they would immediately return the package to sender. Not sure if it's an insurance thing, or they were grumpy about the weight, or whatever.
To boot, prior to the Brownell's order, my last two packages from Fedex were ripped open quite badly, on the TSUSA order you could clearly see there was ammo inside. Not sure if someone got "curious" about the volume of ORM-D packages to my house or if it was honest, but I was annoyed. The second package like that the driver offered to initiate a damage return, but my wife accepted it anyway since it was boxed ammo.