There's no $21,000/day penalty. That's the statutory maximum possible. If NHTSA wants to fine Hotz they would have to propose a fine, let him respond with a d

There's no $21,000/day penalty. That's the statutory maximum possible. If NHTSA wants to fine Hotz they would have to propose a fine, let him respond with a defense, and then convince a court that it is the most reasonable solution to impose the fine amount recommended. There's no way on earth it would come to anything like $21,000/day.