Got a new bike with ethirteen hub in the back. After some unfortunate user error I had to take it to my LBS to get the rear wheel re-taped. After picking it up I now hear a clicking sound only when free-wheeling.

The sound is twice per rev (click, click.......click, click.......). And it's only audible when free-wheeling at walking speed (so totally unnoticeable while riding). I've checked as best I can to ensure it's spokes, or any other kind of rubbing.

I don't really mind it, but since the wheel is brand new, I'm wondering if I should take it in to have the hub taken apart? Could it be anything serious?