Gym Manners

I usually don’t care about what other people do in the Gym. But there are some manners that I believe any Gym should propose or even enforce on their members in order to keep an environment where everyone has a good efficient workout.
Today at the Gym, I recently signed to in NY, there was a couple using the squat rack. The Gym was packed and there were only one rack available. I was literally waiting for 15 minutes for them to finish. They were talking, laughing, and even cuddling and kissing! I finally walked to them and asked if they are done. They got so mad at me! But I didn’t care and kept standing behind the rack till they got annoyed and left. I wished if the Gym had some staff walk around to make sure everybody is not wasting everyone else time.
So piece of advice, please be respectful and aware of other people in the Gym.