I don't know exactly what point they started from on Governors Island, but let's say it's 10 miles. It was said it took them about three hours to get from Governors Island to the site of the crash. The Judge said around 10 minutes should be the norm. She's the judge, but probably misspoke, she's not on trial here. If you chart the route from the Wolf Trapp at around 11:00 PM, to GI then back towards Sleeper, in bad conditions, allowing 15 - 25 minutes or so while they were on GI, you'd have an approximate idea as to their speed of travel. Conditions probably worsened that night coming back from GI, so maybe they started real slow, especially around the Witches area. It's quite possible she thought she was in the clear later on and thought she knew exactly where she was.
All of this info will come out at the trial, so I'd not get too excited about the 10 minute remark. I know from my GPS, I can get trip info, mileage info, average speed, trace my footprints and all of that. Possibly this type of data will be presented as well.
The trial starts next week, so no need for snarly posts. Perhaps Rocky can take it up with the Judge, since it was her statement that started the math problem.