So if someone bought a rifle at show on Saturday, stood in line a couple times this week during their lunch hour, but couldn't get finished before lunch ended, and finally took Friday off from work to register the purchase, they broke the law? It's five days, not five working days?
At DMV people can register cars for folks if all the required paperwork is done. Could someone who had jumped through all the hoops (permit to acquire long gun, etc) and only had to do the final registration process have another person register the gun for them- If that person was also "allowed" to poses the rifle? Maybe there's something that requires another signature on the last day, and that form can't be signed in advance?
If this could happen, I'm sure I woulda seen something about it here on site in the last couple months that I've been following all this...but I had to ask.