Thinking about this further....
Maybe there needs to be a law prohibiting "all sales are final" gun store policies? (sarcasm alert!)
The reasoning would be:
if a person bought the gun, then decided after the 2 week wait not to go forward with their planned use of it -- whatever that might be -- the store policy almost pushes the buyer past a "point of no return" (pun intended). Rather than lose hundreds on a purchase by never picking it up, they're more likely to get it, register it, and have it on hand should they once again change their mind or decide to use it in some other irresponsible way later.
I say, if they have second thoughts, don't force them into a corner.