Earlier quoted context omitted.
Only because the garbage truck moved out of the way.
Which was double parked... Anyway, I dont think most human drivers would have driven in reverse in this situation either.
And yes, I absolutely would have checked my rear view mirror, then reversed (slowly).
Or tried to move over as much as possible to the right.
Or depending on the road and my position, U-turned and pulled in front of the garbage truck. Lots of options, blocking the firetruck not being high on the list.