I realize that I'm late in commenting about this particular subject, so maybe I'm echoing everyone else.
It has been my experience that the shops I perform that seem to have chronically blocked pumps are those that are owned by single, independent operators. IOW, the gas stations that are part of a large chain of local chain operated sites hardly ever have blocked pumps.
Sure, there are the dead vehicles, repair vehicles or some other emergency type situation, but the pumps where the attendant or someone else just parks in front of the pump with their personal vehicle always seems to be more prevalent when the shop is private owned.
At the site where the owner of the car is sitting in their vehicle, doing whatever, I'll take all of my other pictures, giving the person time to finish their text, their call, putting on makeup, scratching instant tickets or something else.
Then, I'll smile and tap on their window and nicely explain that I need to take a picture of the pump, could they move forward just a few feet.
Most of the time they do it, other times, no.
When they don't, I snap a photo of the pump at an angle and move on. I make the notation on my worksheet of the photo and why it was taken at the angle it was. Then in the report, I submit the photo with a comment that I was unable to take a frontal photo due to a car blocking the pump. Usually, I have given myself enough time in my length of stay reported at the site to justify the photo.
For other situations where the car is empty, I go ahead and snap the angle photo and move on. I'll take note of the car's continued presence while downloading my photos into my laptop and filling out my worksheet. If it is gone, I'll take the frontal shot. If it is still there when I'm ready to move on, I use the side shot photo of the pump and explain it as such in my report.
In the old days, I would go inside and ask the attendant or employee about the vehicle. That hardly ever helped in moving the offending car. I do not ding the site for the blocking vehicle - the editor can do that.
But, most importantly, for me, I always, always, take the photo of the blocked pump, no matter how visible it is. If the editor doesn't like the photo and wants me to go back, I would refuse.
That has never happened. And, I'm glad your situation has been resolved.