I live near that area and had heard and seen a drone above my house in the very early morning before dawn a month ago.

I first heard a sound like a swarm of bees overhead but looked up to see the drone.

It took off southbound at a high rate of speed in the same flight path that the police helicopters use.

I have no idea if this is related but I thought it was very odd for a drone to be flying at that time over a heavily populated area near the University of Arizona.