This law is still in place is a result of that attitude
In PA, You Have To Send Up Rocket Signals To Avoid Animals
It's all about cattle and horses according to Brian Stieh:
From Pennsylvania Read more
Any motorist driving along a country road at night must stop every mile and send up a rocket signal, wait 10 minutes for the road to be cleared of livestock, and continue.
Any motorist who sights a team of horses coming toward him must pull well off the road, cover his car with a blanket or canvas that blends with the countryside, and let the horses pass.
In the event that a horse refuses to pass a car on the road, the owner must take his car apart and conceal the parts in the bushes.
Meat is more important than your stupid car. Suggested By: Brian Stieh, Photo Credit: Ariaski