With the holiday season approaching, and shipping about to surge, you may not be the only one tracking the package you ordered online. Some thieves may have figured out a high-tech way to get to your delivery way before you do. Here's kayna Whitworth. Reporter: It's your typical package delivery. Packages left on the porch by the ups driver. But watch what happens next. A u-haul van backing into the driveway. The driver, getting out and getting away with two packages. He picked the wrong house. Reporter: Tarzana homeowner Rick Deckman caught it all on his home surveillance system. Police tracking the license plate from the u-haul, arresting a man and a woman. There were just piles and piles of just stuff -- boxes, mail. Reporter: And the alleged thieves perhaps turning to technology. Los Angeles police saying the suspects were tracking ups trucks on a phone app and attempting to locate packages without a tracking number. Ups denies its technology was compromised. But the police are saying they found some evidence. Or some type of searches. That means the will is there to crack that code. Reporter: And as those porch pickups increase, police say to be more vigilant. As online retail sales soar to $334 billion this year. Experts say schedule your deliveries for a time when you're home, or have them delivered to your office. Kayna, thank you so much.