I’m pretty sure you can, but if the meter person opens it to read your box is another story.
I know growing up our meter was behind a gate, dad even put a sign on the gate saying, no animals open gate to read meter and yet they never did.
Yes this is what I’m worried about! Technically the meter box and tank never fitted in this spot they drew it all wrong this is why we initially had space for a gate between them both but now we don’t because they didn’t calculate space. They had 550mm yet they needed 700mm