Maybe you should take a field trip to Liberty City, or pull up a few episodes of first 48, it doesn't matter much or at all if a police car is sitting close, I can't speak for nowhere else, but here, when the fellas come to get you, a police not gone save you, in fact when them choppa's start letting lose, the police start trying to save themselves.
In fact, in certain neighborhoods they told the police don't park and do reports, back in the day when the police use to do that, they got caught slippin, and ****'s would have a gun in they face and make them pop the trunk and get the confiscated weapons outta their, and he'd be lucky to keep his. In some neighborhoods it's like New year's Eve, notice how you don't see police normally by no later than 1145-11:50, they start hiding round than or earlier, cause they know, payback time, ARTHUR MCDUFFIE, NEVELL JOHNSON, WILLIAM LLOYD, ALLAN BLANCHARD, and the many other victims who passed away or got shot and survived by those cowards with badges and guns!