What Happened to Common Decency

Earlier today I ran into a friend who lives down the block from my shul. She told me that there was a simcha this morning in the shul and about 10 cars parked illegally on her block. (This is not just a legal issue; the block is extremely narrow and parking on both sides of the street makes it difficult for cars to pass and almost impossible for home owners to get their cars out of their driveways).

Unfortunately, this happens all the time when our shul hosts simchas, lectures or musical gigs and guests come to the shul (our own membership is mostly compliant).

I have to admit that I just don't get it. What part of the "No Parking Any Time" sign do they not understand? How do they think the neighbors are going to get out of their driveways? Do they think that the Master of the Universe is going to be pleased that they went to a mussar or hashkafa shiur and parked illegally in a way that blocks in the shul's neighbors? Do they consider that these people may not be Jews and that this might constitute a chilul Hashem? Or that they may be non observant Jews and it might constitute a chilul Hashem?