I know parking is hard these days with the big snowbanks everywhere, but please don't be that guy who tries to save the parking space in front of your house.
I got an email from a reader complaining about a neighbor doing it, and I've noticed it a few places around the neighborhood -- people putting cones, lawn chairs, and buckets to block off parking spaces. The reader included this photo -- someone moved a cone and parked there, then whoever saved the space (presumably) put the cone on the person's car. Looks like they might have added some caution tape too. Lame.
MPD has said that you're not allowed to save spaces in that way, and any items placed in public space (i.e. in the street) should be moved. No space is your space, unless it's your driveway.