Will not lie, I laughed a good bit at this.
However, a UAV as far as I know is generally piloted by someone offsite, as would these drones, so I'm fairly sure they would have the brains not to shoot the kids for running into old man grumpy's yard, but rather the operator would contact a patrol car to swing by and tell the kids to get off the lawn.
*edit* and when I say the operator would have the brains not to shoot them, I say so because the operator will not only have to undergo training which would involve when and when not to use the weapons, but also undergo screening, psych tests, just like any police officer would, I highly doubt they're gonna let Jerry the retard into the pilots seat.