I had a delivery at a residence, about 30 minutes before commit time and had a handful of deliveries left, all in a small zone I know I can bang out in about 20 minutes. Residential signature required, pull up to the house and blow the horn. At the door I ring the bell and knock on the door. Seconds later two little girls open the door (1 was about 3 the other about 5 years old). I ask if their mommy was home, 1 nods yes. I call out UPS, no answer. Now I start thinking and it's crunch time. I waited about 2 minutes, called out UPS a few more times, never got an answer. I moved on to my next delivery and called the local police department and reported this. What would you have done?