Is the red used in a correct way?

[v0031]

1. No splashing – Japan
No one likes to be splashed by a muddy puddle from passing cars but in Japan it’s actually illegal.
In a traditional display of Japanese courtesy, it’s against the law to splash mud or water on a pedestrian.

[Figueira]

I'd say it is correct, but I'd put a comma between "cars" and "but."