Packages arriving with perfume/cologne smell?

In the past I've occasionally gotten packages that smell strongly. I once had to get a refund for a boxed tea because even when I tore open the paper wrapper on each tea bag, they still reeked like perfume.

And today I got some vitamins and the only thing I smell is cologne, the box and the brown packing paper with it also smell. I can smell it down the hall. I also had some mustard and a packet of lozenges delivered in a bag which smells the same.

So are the drivers dousing themselves or their delivery trucks in perfume, or air freshener, or what? And how is it getting inside and on the products?