While showering at the gym, a male attendant yelled into the locker to get out out, I felt that my privacy was violated and?

Sure. Start showering earlier so that you are out the door by 10:00 pm. Of the two people left in the gym at 10:05 p.m. the male attendant was the one who did nothing wrong.

The gym no doubt posted its hours and you no doubt got warning of the gym closing time and the need to be out, so this momentary violation of your privacy has to be balanced by the fact that after 10pm, you were a trespasser in the gym and the gym personnel had the right to hurry you up.

Disclaimer: Please note that this answer does not constitute legal advice, and should not be relied on, since each state has different laws, each situation is fact specific, and it is impossible to evaluate a legal problem without a comprehensive consultation and review of all the facts and documents at issue. This answer does not create an attorney-client relationship.

I think that if you were female and there was a male attendent, this was highly inappropriate. You should file a written complaint with the gym management. Even though a gym closes at 10PM, it would not be unexpected that someone would still be showering at 10:05.