There is a pretty huge distinction between an RC car with a camera and an attachment that can load a single shell into it and the "shotgun-toting robot" that your article conjures.

Doesn't the chief of police have to personally authorize the use of one of these robots? Do you find these scary even when used appropriately? Or is your fear that this is a slippery slope that ends in an autonomous robot sticking a shotgun in your face and demanding your ID?