In the case of the drone falling out of the sky, in all likelihood the person hit, or finding it just got himself a new toy, not the case with the truck.
For these drones, and the cases I foresee coming up very soon are invasions of privacy issues. Photographers already have shooting boundaries defined by what they can see from a public location standing, but how will this be interpreted with drones that can shoot from higher altitudes, but still not cross the established fence, or property line?

Started out doing photography at the age of 6 using an uncle's old 1940 kodak brownie box camera. At 15 years of age, I decided to buy my very own 1975 Praktica SLR camera. I now shoot with a Nikon D850. I do unpaid TFP and commercial paid work.