Quadcopters don't have the endurance to hover in the recovery zone, unless one of the SpaceX recovery ships were to deploy them.
Ideally, you'd use something like a Predator or Reaper with long endurance and stabilized optics. At $4MM per drone (new), that's not outside the realm of possibility.
>>toomuc+(OP)
You don't buy a single predator, you buy a set of them, along with all of the support gear including the ground control station, and support from the manufacturer. - former shadow 200 military drone pilot
>>toomuc+o5
Highly unlikely, the big UAVs tend to contain top secret avionics and we don't always want the world to know the capabilities of their payloads. It might be possible, but it would be a lot easier to call IAI or Northrop and ask if they would rent it to you.