I was told by a member of law enforcement in that county, if I was sitting on my porch drinking my wine and causing no trouble, no law enforcement officer would approach me. However if they were called to an address for other reasons or you were out and about, the law would be enforced. Sure enough, I had the bottle sitting in plain view while drinking a glass on my deck and an officer drove by and waved to me as he continued on.
EWB (Existing While Black) crimes include all non-enforced crimes. Up to the officer's discretion. I've even had a cop tell me that about 5% of cops do this and the rest cannot complain if they don't want to end up without anybody covering their back when it's life-or-death.
And it's easy to forget that the 5% would end up being ~80% of the actual contact that 'profile targets' have with cops, since the good ones don't bother people, they are underrepresented in the contact rate. You can drive by a good cop 1000 times and not get busted if you're not doing something BOTH wrong AND illegal. A bad one will get you at least a few times a year.
In fact they'd probably be 99% of contacts except that people in troubled neighborhoods probably run into regular ones that come when called, a lot more than I ever have.
(I talk to cops about once every 3-4 years, for about 30 seconds.)
DO NOT tolerate laws-not-meant-to-be-enforced. It's a method of drastically separating one group's experience from another group's -- it creates two planets with different realities.