16 CFR Part 435 does not cover Internet Sales.
What Does the Rule Cover?
It applies to most goods a customer orders from the seller by mail, telephone, fax, or on the Internet.
It only covers the selling of goods by mail or telephone.
(a) Mail or telephone order sales shall mean sales in which the buyer has ordered merchandise from the seller by mail or telephone, regardless of the method of payment or the method used to solicit the order.
Read it yourself.
http://www.law.cornell.edu/cfr/text/16/435.1