First, the key to enter the building never worked. Someone else always let me in.
Second, after my early morning exploration of the Vatican, I noticed my room door ajar. I always make sure the door is closed behind me whether it be my resudence, a friend's house, or hotel or personal room door. When asking the woman about my door being ajar, she did not know.
I entered the room and made sure nothing was missing. After showering to check out, I asked the new woman in the lobby to call me a cab. I waited for a cab for 20 minutes when the most I ever spent waiting was 5 minutes.
I left after I was told it would be better if I called a shuttle.