That is strange, to say the least. But I have to remind that any police officer can enforce any laws that they want to, as long as the suspect is White. All the special rules and procedures only apply to non White persons.
This is because Liberals are deeply steeped in racism. Because of their racist nature, they view Blacks and Latinos as their personal pets. And just like all pet owners, Liberals are constantly making excuses for their misbehavior, and are constantly trying to cover for them and to take care of them.
So a word to the wise would be, enforce the law all you want, just make sure the people involved are White and you will never have any trouble at all.