If you look at it carefully enough, it's the easiest maze ever.
Normally, when one does a maze, one goes between the lines.
You didn't specify this as a rule. If you begin on the black line in the lower right hand corner, and follow it, unbroken, to the upper left... it's a breeze.
This picture actually has a white border (roughly 8px wide), with the edges defined by four points. Assuming this is part of the maze, simply follow either the left or upward paths, following one of these paths until the destination is reached.
I entered the maze, intrigued by the difficulty caused by the fact that the exit was blocked off by a wall. Attached to my belt, I had one less powerful grenade and two more powerful grenades. I was glad to find out that the walls were made of a less sturdy material, meaning that a grenade could easily knock down the wall. I tested the weak grenade on an unnecessary wall, and to my delight, it worked! I proceeded by using a larger grenade on the wall that was blocking the exit. Not to my delight, there was a police officer guarding the exit! I used my last grenade and ran towards the exit. I made it out of the maze successfully.
The rules can be satisfied without even entering the maze.
There's "No going around the maze", but nothing to say "The maze can't go around". So if you stand at the bottom-right corner of the maze, and rotate it 180 degress about its centre, you will end up at the top-left corner of the maze.