WM, I am intrigued with how grumpy those bees are! To be down the road and still get stung? I could understand a defensive sting, like if one got trapped in your clothing. They are not happy. 
From my experience, when they figure out there are not where they should be (in a vehicle) their attention focuses on going to the window and trying to get out.
That's what I was banking on when I took off my jacket and veil. I thought everyone had evacuated the truck by the time I'd stopped, but there was a cluster in the backseat on some old bee equipment. Maybe they thought they were a new colony?
These are BeeWeaver bees. I'd installed new queens in all three hives in March last year. I found the marked queen in the hive that had been robbed. They could have been from the middle hive, which was also aggressive. I hadn't dug down looking for the queen because the hive seemed to be doing well, other than the defensiveness. Lots of bees going in and out. BeeWeavers are raised in an area with Africanized bees in the neighborhood, so there are sometimes Africanized genetics happening.
In any event, the bees were still defensive, but calmer the last time we visited. The bees did not follow us as far from the hives as they had the week before. When I got stung, 3Reds and I had walked a pretty good distance from the hive and still had bees swarming us. This last time, there were only one or two bees around us when we stopped, and those left as soon as we stepped into the truck.
The week I got stung, I had parked next to the hives, so I stepped into the truck with a cloud of bees.
