So example A is okay here and B is bad?
A: I really loving hate hate <blank blank blank bullstuff law here>
B: forget forget forgetidy forget forget
The difference is that in A, you're using "loving" as an adjective and it's simply a single word in your sentence and you're using it to express yourself. You're not continuing on swearing constantly.
In B, you're just spewing swear words for no reason other than to spew swear words. So, you're disturbing other people, you're being insensitive and distressing to other people.
fair enough so someone could go "Man I really want to loving go eat," and the cop can not do stuff right?
He could politely ask you not to swear, for example if you said it really loud.
You have to remember that if a police officer tells you something it doesn't mean he is having a go at you or trying to get you into trouble.
He's just trying to make everyday life for everyday people nice.
And if that means telling someone to stop swearing because they are upsetting other people, then it is his job to do so.