I have never heard of a flight getting delayed to accommodate a jump seater. They would simply leave you. Running to get an unwarranted alcohol test to prove your innocence to a tarded pax seems over reactive and puts you on the defensive. If you did nothing wrong, there is no action to take. There are people out there who try to gain control by putting you in a defensive posture. If you react, or retaliate you have played into their game and have already lost. I think you did the right thing.