It probably is, but as you go from the reasoning behind a policy, and the policy as written, and the understanding of the policy by the people who enforce it, it's like a game of telephone. Bet you a nickel that if you asked someone who is responsible for moving along vehicles that are parked or stopped too close to the building about the reasons for the policy, you'd find much less than complete understanding...which is unfortunate. It's very hard to guard against dangers by rote; it's so much better if you understand the principles of why something is a threat instead.