Maybe his wife just left him, his son announced his descision to have a sex change and his neighbour ran over his dog just that morning?
Why not leave a note for the next guy Kev,
explain that your package/s contain easily damagable products (I'd omit to mention if its roaches though

) and could he please leave it/them in a more convenient location etc
etc...Thanks for your help, much appreciated...bla bla.
Perhaps provide a suitable place/container for the purpous when you expect a deleivery.
The guy is probly flat chat trying to make his living, usually a contract job meaning he isnt highly paid. Show him you understand that, and that you dont think of him as a 'lowly servile' at your disposal and you'll probly find he is unexpectedly surprised enough to care about you in return.
Its a bit like folk who work at mcdonalds and the like, if you give them a hard time and make an enemy instead of freind, they might spit in your food!
Better to have UPS guy/s who happen to be freind/s, than strangers who dont care.
more so if you get regular delieverys.
