So the scenario would be such as this:
William is in a hurry to get his medicine from a pharmacy in Walmart, which is about to close. Worried that the pharmacy would close before he gets there, he parks in the disabled parking spot. A stranger watches him do that and tells him
Stranger: "You can't park there, man, it is for disabled parking only.
William: I know, but it won't take more than a minute and I am in a hurry.
Stranger: No, you gotta take your car off from the disabled parking spot"
William: "You are a cop? Or you are a vigilante or who are you to tell me not to park there and not understand my urgency here?"
So my question here. If William wants to negatively describe him with a word, what would he say?