Any note or other evidence of indebtedness given by a buyer in connection with a door-to-door sale shall be dated not earlier than the date of the agreement or offer to purchase. The seller shall cause the words “Nonnegotiable consumer note” to be placed prominently on the note and an assignee or holder of a note or other evidence of indebtedness with the words “Nonnegotiable consumer note” appearing prominently on the note shall take the note subject to the claims and defenses permitted under § 6A-3-306, irrespective of whether or not an assignee or holder qualifies as a “holder in due course” as defined in § 6A-3-302.