As a satisfied customer, I found this story to be a bit questionable. Now that the manufacturer took the time to clarify, it all makes sense. Given the huge liability involved, I find it hard to believe that any manufacturer of a critical safety device would be willing to ship warranty parts, at no cost, for a customer to repair. Try stopping by your local Chevy dealer, and tell them that your new truck needs an ABS controller, and you will be taking one with you, for no change, since you want to do the work yourself. Good luck on getting that, since that's not happening either.
OTOH, I just got a few parts, last week, from Tod at NSA. I moved my set-up from one CRV to a newer one, and wanted to replace the brake and E-brake cables. The parts were reasonably priced, and I got them, half way across the country, in two days, for no extra charge. I asked Tod about my fairly worn tow bar set-up, and the process of having it rebuilt. He made it clear that, as an original owner of the product I just needed to get it there, and they would rebuild it for free.
Congratulations on the few who questioned NSA's integrity without the facts.
Nice work.