That would also be sufficient to abandon the definition. But no, I mean she is actually are physically safe and the guy is being creepy as @#%#. Either the recipient of the creepiness or an observer can both legitimately call that behavior creepy even if the victim of it neither feels nor actually is physically unsafe.

I'd say that the target can legitimately state that the guy's behavior is making her uncomfortable (assuming that this is in fact the case), and/or tell the guy to buzz off and have this enforced as necessary. Either the target or any third party can legitimately caution the guy that his behavior could be interpreted as "creepy" (i.e. at least mildly threatening) by others.

However, I would not use "creepy" to describe all instances where someone is being merely bothered by someone else; nor would I want to have a fixed cluster of behaviors be regarded as "creepy", regardless of the target's actual feelings and reactions. Thus, I'd say that defining the above as not-creepy is in fact very reasonable.

The above definition conveys concepts that aren't even intended for use in 'thingspace' as opposed to 'political space'. Specifically, the assignment of blame and responsibility.

Um, no. Physical causality is not the same as appropriately-assigned blame and responsibility. Even then, I could easily rephrase my definition as: "Person X's experience and overall disposition causes her to feel physically unsafe to some degree, upon being exposed to some peculiar attitudes and behavors on Person Y's part" and this would not change my preferred policy.