As the streets clear as he walks through them, he pauses to light a cigarette, and leans against a building. The dealers inside, assuming he's come to rip and run, throw down their cash and drugs through the window. He shrugs, pick's them up and walks home.
I had a feeling Omar was going to get clipped during that scene.
Btw, I didn't even notice that they threw the package outside out of fear. I thought it was just a routine delivery or something. You really need to stay focussed while watching as this serie has a lot of detail. I can say this: it's less entertaining than the Sopranos, but it's a more intelligent serie.
