Geez dude, at least be honest about what you're trying to do. I think it is pretty lame you come on here and say "Thought I would drop this here for anyone needing to get around on an overnight." when you're just trying to get free rides for yourself.
FYI, those codes are unique to him and he gets $20 in free rides if you use them.
My code for Uber is 5UZQY. I will at least be up front about it, I get $20 in free Uber rides, as do you, if you use this code.