0.6 miles is not very far to travel, especially when 0.2 miles are accounted for by the offramp. A drive once around an unfamiliar parking lot in the dark, looking for a small charging station can easily account for 4 minutes and 0.4 miles. Every EV charging station I've seen hasn't had any signage or otherwise aside from what's written right on it, You can't assume he'd automatically know where it is.
Regardless of whether Tesla is right or the NYT is right (and I'm inclined to believe both sides are partially at fault), the fact that Tesla took such offense to a measly 0.6 miles I find laughable.