Move someone’s shoveled-out parking space holder and take their spot.
This may get you murdered around here. Most apartments in the city don’t come with parking, and finding a spot on the street in good weather is its own miracle. In the winter, it also involves spending an hour heaving yellow snow all over the sidewalk while cursing the weather gods. No one wants to have to do this twice, so it’s customary to lay claim to your spot by placing an item such as an orange cone or laundry basket in it.
So no, that lawn chair isn’t sitting in a perfectly shoveled-out rectangle on the side of the road because someone forgot to pick it up after spending an afternoon people-watching during the polar vortex. Only move it if you want your vehicle destroyed using said lawn chair as a ninja star.