Video Calls in the washroom

I was changing in the washroom and another person started making a video call. I saw his friend so I knew that I was caught on film. He was heading to the door so I didn't say anything. He then turned and stopped in front of the mirror. I said "Dude, I am changing and you are on a video call". He responded: "Don't worry, I didn't film you." He then continued his call. At this point I felt that pursuing the situation further would be counter productive for my membership.

If this happens again should I be calling the front desk? I obviously don't want to walk out in my underwear and alert the staff. I feel I could easily scream loud enough to attract attention. I understand that I can get dressed and then go to the desk. The delay would allow the call to finish and could understand why the staff would have to give the benefit of the doubt to the person breaking the rules.

For the record, this seems to be a trend as I have also been using the toilet and the person in the next stall made a call on speaker. I waited for him to leave the stall out of embarrassment.