The signs are there for a purpose, I hit a kangaroo a few months back 5km out of Cobar in the NSW outback. I try not to drive at dusk and early evening, this is the time kangaroos come out to graze. Unfortunately the country town that I thought I could stop the night at just wasn't right and Cobar the next town was 260km away. I nearly made it but as the taxi driver who took me out to the car the next day said, you are more likely to find them close to town. It took three and a half weeks to get the car the approximately 700km back to Sydney ad another two weeks to fix it. The taxi driver had been a roo shooter and he picked out three roos on the way to the car. He asked me what colour it was and when I said it was red he confirmed how stupid they are,. It had hopped off the road when I hit the brakes but when I took my foot off the brake he hopped back in front of the car. The tow truck driver who took me out to my car told me he had hit four roos the previous night, three in one go.
Murphey's Haystacks are very close to 2000km from Sydney, I hate to think how long it would take to get the car back from there.
So it's rare that I take sunrise/sunset shots unless they are close to my accommodation.
Wild horses aren't a problem but we do have over 1 000 000 wild camels in Australia. I have seen the rare camel roadkill and I'd hate to think what a mess they would do to a car.