They must have language in their Terms and Conditions that allow this. McDonald's probably has one too. "By using our drive thru service you agree to have your

They must have language in their Terms and Conditions that allow this. McDonald's probably has one too. "By using our drive thru service you agree to have your voice collected..." Also, what about the message "This call may be monitored for quality control purposes." That's not asking permission, but it is warning I suppose.