Actually this mod helped me A LOT! I was looking for a way. And for all of those that might use it to disable the chime to drive without it, I personally didn't like it for another reason:
When working on the car/tuning, Dyno runs, etc, sorry fellas, but I don't wear a seatbelt while parked. THAT's when its annoying. This helps me, but I might be a select case..