My first thought is no.
I would have to see it but I might be able to say if you can open the panel cover easily and had plenty of room to access the breakers it might be OK. I would approach it skeptically tho.
I understand it is also important to protect the panel from physical damage. They would need a very compelling reason for the bollard to be there. Obviously having the bollards out past the limits of working space is what they should be doing.
The next question is how heavy is the bollard?
Would OSHA let one man pick it up? (<50 lbs) That could be the deal breaker.
There are 2 issues with working space
One is clear access to the breakers, the other is actual working space where you are away from any grounded objects when you have the dead front off.
My fear is that, even if this was easy to move, the worker might not do it and be firmly grounded with his hands in the hot panel. There are several safety violations there but we all know that sort of thing is common.
