We have tons of preferential treatment in our justice system, it's not really a secret. For example, economic preferential treatment. If you have lots of money, you can get out on bail easily. If you're poor, you may lose your job, maybe your kid (social services), etc, if you can't afford bail. If you get arrested on some minor charge and you have $80 cash in your wallet, you can be released immediately rather than wait overnight for a judge to arraign you in the morning. Did you know foreign nationals can buy residency in U.S.? Not citizenship, but residency; I think it's ~$300,000.
Unlike Lady Justice, cops are not blind at all - they can pick and choose when to enforce the law. I forget what it's called, but the police are literally given the option for some laws to just not enforce the law if they don't want to. If the cop is in a good mood, they can decide to just let it slide. If they're in a bad mood (or they don't like the color of your skin) they might prefer to enforce it.
Unlike Lady Justice, cops are not blind at all - they can pick and choose when to enforce the law. I forget what it's called, but the police are literally given the option for some laws to just not enforce the law if they don't want to. If the cop is in a good mood, they can decide to just let it slide. If they're in a bad mood (or they don't like the color of your skin) they might prefer to enforce it.