Not exactly sure what "snap" means here.. The symptom was, if going over a pothole, bump, undulation in the road, etc. at certain speads (and especially when cold) I would hear a single rattle coming from the area. Is this "single rattle" what you mean by snap? Of course, generally there were lots of these undulations, etc so the net result would be a series of annoying (and rather loud) rattling noises.
In any case, since persistence at the dealer paid off (being able to reproduce was key) I suggest you take it in and let your dealer address this. We all agreed (especially the dealer, thankfully) that a $40K car shouldn't make any of these types of noises when driving on normal road surfaces, and they did indeed fix the issue.
Hope this helps,
Nick