Yes, 5 or 6k (I constantly forget the exact value).
I have done that so many times, particular in the low-population arenas. In LW the chance is much higher some enemy is being around (even manned ack guns do count!).
One trick to get enough distance from any enemies in a GV is NOT to drive back to the spawn, but into a totally different, unlikely direction. Everyone who suspects enemy GV will head to the spawn and the town.