Parking question

Hi all,

A question about parking. In my neighborhood, there is someone who parks their car halfway on the sidewalk. It's a pretty busy street, and pedestrians and bikes often crowd the sidewalk during busy times (there's a brown "suggested lane" for bikes, but the cars basically take this space). The parked car on the sidewalk reduces the already small space for pedestrians at an uncomfortably crowded intersection. The pictures show the situation from in front and in back of the car.

My questions:

  1. Is this legal? Are you allowed to park half on the sidewalk?

  2. If not, who can this be reported to? Is it the police, or some other part of the government?

Many thanks in advance!