Something similar happened recently to my wife's sister's employer's house. Some older well dressed gal tried to gain entry by poising to know the owner. She was turned away after the boss answered the door.
The next day she attempted entry at the rear of the neighbor's house. These owners were on vacation and the surveillance camera triggered the alarm on the owner's cell phone.
Since I installed the Blink camera system it has been extremely rewarding seeing whoever approaches the house or backyard. Mostly it is coyotes, rabbits, cats and the occasional person. Fortunately no breakins though. For less than $300 cdn you can get a decent system. Worth the peace of mind.
