This is, indeed, the maturity level that one has come to expect from Democratic candidates these days:
On June 27, former Colorado Speaker of the House Andrew Romanoff oversaw a group of volunteers chalking the sidewalk of the government district office of U.S. Representative Mike Coffman in protest over immigration issues. The political protest ended when the building manager, Quyet Dang, arrived in the parking lot and told the crew if they didn’t clean up the chalk he would call the police. The chalking ended almost immediately, but the cleanup took 15-30 minutes, or even longer than that according to some sources. Regardless of how long the cleanup lasted, the tapes show Romanoff leaving before it is finished.