Committing crimes in Union City will, sooner or later, lead to a little attention of the blue and flashing variety. If you can avoid them for long enough, they will get bored and go find something more interesting to do. But in the process of being chased, it sometimes happens, just by accident, that a few things might get, well, broken. Cars do go wrong, officer. Sometimes they even explode.
People fall over.
I didn't know that rocket launcher was loaded. All this troublemaking will eventually cause the fuzz to call in something a little more potent than a few jam sandwiches. Big, souped up, black sedans are the order of the day. Maybe a few of these agents might, say, get set on fire. But the authorities will not listen to your pleas and in go the National Guard, tanks, armoured personal carriers, jeeps and all.