This is doing my head in :'D
I did a similar thing to you but I got this:
2?874~478|2
>|=\565\=?>
-_-_-_-_-_-_- (7 dashes, 6 underscores)
I flipped it all round to the opposite symbol on each key of the keyboard. I have a feeling there is something in this to reveal a code but I have no idea how to work it out :'D maybe all the numbers/symbols correspond to letters? Not all one word, but a phrase? Complete shot in the dark really.