Driving back and forth in front of the charger doesn't seem quite so crazy given the distances involved. The distance the Tesla logs for is ~0.5 miles at a speed of ~10mph, but that's only 3 minutes of malfeasance, if it's anything at all.
And I'm not sure it's malfeasance -- because it's certainly not led to anything in the report. Maybe he wanted to park and get some food but then remembered that the charging takes a while and did it in opposite order. That could take 3 minutes easily off.