Someone once dropped some fireworks not too far from me at 3am a few years back. They were loud and, yeah, cops were called. A few minutes later about five cars drive past me about 30mph over the limit. Not sure how they didn't see me or try to see me. But I know they didn't catch the BRIGHT orange and lifted care.
Me being me, I submitted a FOIA request for the dashcam footage of the five cop cars and the dispatch logs.
Instead of pulling over the easily identifiable car, they pulled over some random guy. They were behind him the whole time but five cop cars pulled behind him thinking that he fired a gun a few minutes back.
He was let go without a citation, but the official reason, despite being paired with the dispatch for the firecracker, was a broken headlamp.
I may or may not know a business owner who got criminals off their business' street by saying he thinks he saw a gun any time criminals showed up to do things, everything from prostitution to selling drugs. Cops showed up immediately. They stopped coming by altogether, probably the safest street in quite a rough part of town.
It's crazy how cops just rush to very specific and nuanced crimes. Someone likely said they heard gun shots, and then they scrambled to find them.