The consequence has been that a huge pile-up of leaves and debris accumulate week by week, as the street cleaning machines have to by-pass the parked vehicles.
I lived for a number of years in San Francisco, in an area of town that allowed non-permitted street parking, except on street cleaning day. For a period of time on such days, no cars could be parked, those that were got fined big time, and the streets were nicely cleaner.
I don't object to the work goiong on in my parts.
What I question is why Palo Alto doesn't follow the same practices as many other municipalities, and on street cleaning days, restrict parking for vehicles for some or all of the day.