is heathcote road a highway? i thought it was a minor road (so say 60k limit) which is why the op was able to get the pics , either way if they thought it was rope they would of have to had thought it was a bloody thick piece of rope (which i know is made for certain reasons but it isnt very common) and if your a decent driver and the animal doesn't just run in-front of you (which a boa could not do), you should be able to avoid it , i speak from experience their , i live in the country and the amount of animals ive missed on the road is crazy , and yes ive done it at 100kph