When you use Priceline you agree to the terms of use. If you go to those terms you will find the following: " You agree to provide correct and true information in connection with your use of this Site and you agree to promptly update your account information (if applicable) in order to keep it current, complete and accurate. It is a violation of law to place a Request in a false name or with an invalid method of payment. Please be aware that even if you do not give us your real name, your web browser transmits a unique Internet address to us that can be used by law enforcement officials to identify you. Fraudulent users will be prosecuted to the fullest extent of the law...."
Anyone proposing to test the regulation should be satisfied with their legal position in the matter, as stated above.