As seen in the glitter bomb experiment [0], many package thieves simply drive a few blocks, open the package and then toss whatever isn't valuable. Not that likely it will give you much useful to go on.
> To compensate [people whose houses I left the package at] for their time and willingness to risk putting a package on their porch I offered financial compensation for any successful recoveries of the package. [...] I've since confirmed in these two cases, the “thieves" were actually acquaintances of the person helping me. I have since removed those reactions from the original video.
All of the content in the video right now is legitimate and the video's author was not aware some of the original recordings were fake.