I just had their "security staff" open the door ye...

I just had their "security staff" open the door yelling security and enter our room despite a DO NOT DISTURB sign on the door. My wife had just stepped out of the bathroom to get changed, I was undressed ready to go into the shower after her. She had to run and hide around the corner to avoid being seen and I had to pull on a pair of shorts. I barely got an apology from the guy as he turned away to make a call. The housekeeping ladies appeared more distraught and offered more of an apology. I'm not making this stuff up here. I've just rung reception and have demanded that the GM come and explain themselves. Of course, he/she is absent. This is completely disgraceful and unacceptable. I've now wasted another half an hour of my afternoon dealing with this. I had their head of housekeeping come up and try to blame reception for not informing them that I had requested a late checkout. Disgraceful. Own up to your actions. They only gave me until 2pm (half an hour to shower and pack). They should be ringing the room or have reception check if there were guests in the room if there was a privacy sign on the door. Instead of shifting the blame. A male security staff walked in on my room when my wife was naked and getting dressed. What more is there to say about this hotel. I am absolutely furious right now.