The vast, VAST majority of people in San Francisco and the rest of the United States deal with emergency responders with no problems whatsoever.
You're just experiencing a bunch of whiny, self-entitled assholes who're making more money than their underdeveloped brains know how to deal with and now think that they literally shit gold bricks.
This is causing WAY more problems in San Francisco than the SFPD.
If there's going to be any sort of protests in SF it is going to be against these asshats, not the SFPD, mark my words.
And ambulance service costs U$ 50/month and is included with 90% of the populations' health services.