Someone entered my hotel room at 245 this AM

I travel around 225 nights per year for work, so I'm accustomed to hotel living. This morning, my door opens and in walks this couple that doesn't speak a word of English. It scared the shite out of me. I'm yelling for them to get out and they're yelling back something. To make matters better, I call the front desk, and they say they didn't double book the room and that the key is likely stolen so they're rushing security up. They call me 15 min later apologizing. I'm usually pretty easy going but that was unsettling. Someone could have gotten hurt.