Yes, it is an offence to cross a stop line protected by a red wig-wag signals. Interestingly they are one of the few road signals that must be obeyed even by the emergency services on a blue light run.
True that!
"The following is a list of non-exemptions for emergency response drivers. Under no circumstances can emergency response drivers commit any of the following:
1. Dangerous driving.
2. Dangerous parking.
3. Careless driving.
4. Refusing to stop the vehicle if involved in a traffic collision.
5. Driving without a seat belt.
6. Failing to adhere to a red light at a fire station or level crossing.
7. Crossing a solid white line in the centre of a road unless it is safe to do so (e.g. overtaking a slow-moving vehicle).
8. Failure to adhere to a ‘one-way’ traffic sign.
9. Failure to adhere to a ‘no entry’ sign.
10. Failure to adhere to a ‘stop’ or ‘give way’ sign.
11. Failure to adhere to other instructional signs."
It used to make me smile when drivers were told that. You'd have thought it would have been obvious right?
I say used to, right up until I heard the first of many student drivers ask why.