They get delivered. If the sale was made before the 9th, it would be legal anyhow. There's no law against shipping it (yet, at least they don't enforce it), it's all about selling it (for now).
Besides, the FDA doesn't have the resources to stop shipments from being shipped or intercept domestic shipments mid-way.
Thank you.
I could see it now. Customs confiscates a fasttech package in October that was ordered in July.
Wait for it.