At least one of these companies is a pure protection racket.
"ParkModo was recently offering $13 an hour to drivers who would occupy parking spaces in the Mission District during peak weekend times and then sell the spot through its app, a Craigslist job posting showed.
"'Get paid $13.00 per hour just to park!' the ad read. 'Our company is launching an awesome app that rewards people to sell their on-street parking spots before leaving to people who need a spot.'
"It went on to say that: 'Once you are parked, using the app, you will offer the spot for sale. … Once someone purchases the spot, you will complete the transaction with the buyer and then find another space to park in and start the process all over again!'"
It's as if AirBnB were paying people to burn down hotels.
Chill people, the city is already doing this by adjusting meter rates with demand to assure that there is will always be a few street parking spaces available for those who are willing to pay for them. Living and parking in SF is not a god given right.