Police on bicycles? REALLY?

A week ago I was drumming in our screened-in porch (since our basement was recently sealed and worked on) and after about 25 minutes, I saw the two police officers driving up my driveway...ON BIKES! They said "can we talk to you at your door?" Turns out a neighbor perhaps a few blocks or a street down called the police complaining about "loud drumming". Really? I understand that it's extra loud in the porch because of our glass walls, but seriously it was 11 in the morning. As much as I'd love to play in my basement we're still spraying the walls for mold and eventually will be painting a mural in oue of the corners. I guess I don't get why I should have to stop drumming on my only free time because some cranky neighbor couldn't handle 25 minutes of music...Even the police didn't think it was a big deal.