The problem: your hero knows where he hid the stuff. And the bad guys know he knows. And they will make him talk.
If the hero hands the things off for someone to hide, then he will give up his associate, and they will make the associate talk.
If the hero gets blind drunk and hides the things so he will not remember where they are, that is pretty clever in a dumbass kind of way. But the things are not hidden. They are lost.
He needs the things to leave him in the company of a stranger and take an unpredictable, circuitous route, ultimately coming back to him after a long time.
He needs a gnome.
The travelling gnome prank involves the theft of a garden gnome, which then accompanies strangers and gets into trouble in the course of a long trip. The gnome eventually comes home with photos of his mysterious doings. In your case, the gnome is a mule, carrying a stash of illicit data within his hollow body. Even if the hero is caught, he cannot say where the gnome might be.
The baddies could wait it out, but it might take months. Or they could try to figure out where the gnome might be, and set off in pursuit.
