It would depend upon the form of liability. Certainly, one can consent, as long as it's informed consent, to what would otherwise be an intrusion upon your seclusion. If you agreed that somebody could do something to you that would otherwise be an invasion of your privacy, it would be very likely that this would be the defence set up with respect to any sort of lawsuit. It wouldn't be immunity per se, but it would be that your case would lose, so it's effectively the same result.
On May 6th, 2014. See this statement in context.