Can someone stop your car from charging without setting off the alarm?

I have reason to believe that someone is somehow interrupting my charge, out of spite. I'm not sure how that is possible without triggering the loud alarm. But in several cases, I'll confirm that the green light is on (Mode: Charge Immediately) and when I come back at the end of the day the EV miles are the same as when I plugged it in (i.e. it didn't charge much at all).

Normally I would chalk this up to some sort of occasional charging glitch. But there is an interesting coincidence. Every time this has happened, it's when I've parked in a particular spot that has been "claimed" by an i3 BMW who leaves his charge cord plugged in whenever he leaves to "hold his spot." The policy is first-come first-served, but I have a feeling this individual is tampering with my charge cord because he is upset I'm taking his "personal" space. I'm planning on reporting this to our Operations Dept. But first I want to confirm that this is possible. And not some crazy coincidence.