Can confirm.
I was working on a ranch outside of Laredo about 20 years ago. I was walking in thick grass and somehow disturbed a nest of Africanized bees. I don't know exactly what I did, but suddenly I was getting stung on my face and neck.
I Usain Bolt-ed it back to my truck (in work boots and snake chaps). Thank god that 1) the door wasn't locked, and 2) the windows were rolled up. I out ran them back to the truck, but they followed me and quickly caught up. I have no doubt that they would have outlasted me if my truck had been much further away.
They followed the truck for probably half a mile, until I got to pavement and could out run them.
I had about 9 or 10 stings total on my face, neck, left hand and left arm. My lefthand swelled up like and my fingers looked like bloated sausages. I took some benadryl and had the epipen ready to go just in case, but ended up not needing it.
Called the land owner later and gave him the GPS coordinates of the hive. He said he'd get the flamethrower out and kill those fuckers with fire.