I once had my car parked in an un-zoned spot. Took my dog for a walk (~8am) and walked by the car to make sure everything was ok. Took my dog for another walk

I once had my car parked in an un-zoned spot. Took my dog for a walk (~8am) and walked by the car to make sure everything was ok. Took my dog for another walk when I got home from work (~5pm). Walked by the car, it was gone, there was a big hole in the ground where my car had previously been located and NO PARKING signs were up that were definitely not there in the morning. It also looked like regular maintenance work, nothing catastrophic (could have waited a day or two for the cars to clear out). My car was nowhere to be seen. I found the car a few minutes later down the block. It had been towed to another spot. Unfortunately they left it in a zoned area and I had been ticketed for parking without a zone permit. Just one of the many fun parking experiences I had living in Chicago!