Boston Standard Company parks their van on the sidewalk. This is illegal, dangerous, and disrespectful behavior. They prefer to destroy public infrastructure and force pedestrians to walk in the street, rather than walk 50 feet from a real parking space to their work site. If you don’t know how to park, you should not be driving. I would never invite these people into my home.
Edit: Their response below — with no apology and no indication that they will make any changes in the future — shows that they stand by this illegal, dangerous behavior. If this is how they park, just imagine the kinds of corner-cutting they are willing to do to your plumbing!