I've actually experienced these situations a number of times.
In a few cases the gringos told the Hispanics to hit the bricks and ask permission next time they'd be in the area.
I had to laugh at that because a local police department had once required a congo I was in to notify them before preaching in their area.
But for the most part, kindness and mutual respect were shown by all.
There are assholes in any organization.