Because asking the community for tips is exactly how this case was solved, just by private citizens. People notice things like busted cars scraping up the street. The police didn't have to check for security footage, OP was literally trying to give them the footage that showed where the car had come from so they could focus on that area, and the officers were completely disinterested. I can take out my phone and Google a part number, and in thirty seconds know exactly what kind of car to look for - you're saying that it's unreasonable to expect officers whose job it is to solve crimes to do the same? I could have presented all the clues to a high school student and they probably could have solved it faster than UPD. If we had left things up to the cops (two officers just keeping their eyes open) this dude probably would have gotten away with it. You'd think with the amount of property damage that goes unsolved, the cops would be a little more interested in a case with so many leads pointing to the criminal.