An elderly Pennsylvania couple were surprised by a delivery to their home from UPS last week...5 pounds of marijuana. According to the Delaware County Daily Times, the couple said they looked at the mysterious package, and saw it had the wrong address. They decided to leave it on the porch, thinking someone would pick it up. After some time passed and nobody did pick up the errant delivery, they decided to open it up and discovered the weed, which authorities valued at $10,000.  Police said the return address on the package turned out to be fake, so that lead to a dead end in the investigation. Police said they see half a dozen or so of these types of deliveries a year, and they are usually able to track down the sender, and make a bust.