WRONG, in part. You don't need a permit to carry OPENLY. Its a CONCEALED carry permit, not a CARRY permit.
Minnesota law does not distinguish between open and concealed carry.
There are some states that allow open carry without a permit, and require a permit for concealed carry.
Minnesota is not one of these.
It's against the law to carry without a permit, whether open or concealed. And if you have a permit, it's legal, both open and concealed.
Then it should be called a carry permit not a CCW if there is a distinction.