Bet that fruit truck guy was an American citizen.
One phenomenon that's sprung up recently (from what I've seen) in the east SF Bay Area has been the popup fruit stand, with its wholesale-format flats of fresh fruit (generally just one or two kinds, right now it's strawberries and cherries), a big patio umbrella, and a couple of small adults who look to be natives from Central America. They are almost certainly not here legally. I've seen them encamped not far from a nearby college campus (to tug on the heartstrings of those liberal kids) or a public transit parking lot (and a recently-cleared homeless encampment).
It's a sign of the degradation of our culture that these people (again, almost certainly not here legally) hang out with their wares and no one stops them and people (with the best of kind intentions mind you) even keep them in business. They are brethren to the little men I see nearby who arrive every morning with their caps and hooded sweatshirts and backpacks, out looking for day labor opportunities.