Hi everyone I'd just like to update anyone that was wondering what happened.
I called UPS several times, and finally one representative directed to speak with the local drop off building. They called me to say that nothing was found in the drop box and the driver hadn't seen anything there for the passed week. This got me panicking for a while, but about 2 hours later they called me back. They driver had returned to the box and checked the latch and found the package stuck there (but it was so small). Now it's on its way to its destination and everything's good.