Thats what it looks like to me. If it was leaking you would know it. I am no detective but the way that crease looks. I would guess it was bent when they installed it. Everyone wants to assume the worst right away. Make sure the unit is not loose If its not loose and its not leaking put the cover back on I don't think you will be able to push it straight with out taking it down. If it cools and doesn't leak leave it alone.It is just the metal that is bowed. The roof looks fine
Previous OP post noted Leaking.Thats what it looks like to me. If it was leaking you would know it. I am no detective but the way that crease looks. I would guess it was bent when they installed it. Everyone wants to assume the worst right away. Make sure the unit is not loose If its not loose and its not leaking put the cover back on I don't think you will be able to push it straight with out taking it down. If it cools and doesn't leak leave it alone.