Source: American Assembly [PDF]
quote: If you are, there are precedents to back you up.
quote: The Copyright Act authorized Chamberlain’s customers to use the copy of Chamberlain’s copyrighted software embedded in the GDOs that they purchased. Chamberlain’s customers are therefore immune from [DMCA's anti-circumvention] liability.
quote: It is not clear whether a consumer who circumvents a technological measure controlling access to a copyrighted work in a manner that enables uses permitted under the Copyright Act but prohibited by contract can be subject to liability under the DMCA.