This works for me bud. Just change the coordinates to wherever you want your safezone.
[SCUM.SafeZones]
SafeZone=(Name="Safe",X=143858.07990459152, Y=156548.6553240393 0, Radius=1.0,
HumanToHumanDamageMultiplier=0,
MeleeWeaponDamageHandling=0,
ThrowingDamageHandling=0,
ProjectileDamageHandling=0,
ExplosiveDamageHandling=0,
DamageToBasesHandling=0,
DamageToVehiclesHandling=0,
PuppetDamageHandling=0,
VehicleDamageHandling=0,
PlayerLockpickingHandling=0,
WorldLockpickingHandling=0,)
Hope that helps.