That maintenance guy is an idiot. I worked maintenance for years and you never enter someone’s home without ringing or knocking and waiting for a reply (even if they say the home will be empty). When you do unlock the door you open it slowly while calling out, “Hello! Maintnance!” I’d say 30% of the time someoine was there when I was assured the property would be empty. Kid skipping school, home sick and forgot our appoinment, etc.