Thanks for taking the picture and being proactive. It's nice to see people taking pics to document what they think might be happening, whether or not they are stolen, just in case they are stolen. I dont think it's wrong to post it because his face isnt showing.
That being said, unfortunately I have such a low opinion of CPD with regards to stolen bikes that I think if you had a cop there watching a bike being stolen he'd just shrug and say "there's nothing I can do about it". So IMHO, if you were to determine that the wheels were stolen and brought the pics to the police, I dont have faith that they would do anything about it.