I had headphones on, but Matt presumably would have heard a knock, and definitely would have noticed if they'd tried buzzing his phone to get in, SINCE HE WAS LITERALLY HOLDING IT.
One time they tried that on a friend of mine, and she replied to them that she had been sitting on her front porch grading papers for fourteen hours straight, without even a bathroom break, and they apologized and told her that they'd actually just lost the package.
us: No, you literally did not.