I would suggest having an independent body shop look at it. This shouldn't be that hard to track down. The hood only attaches at 3 points plus the bump stops.
One way around the "it's normal" BS is to have them test another vehicle and see if it does the same thing.
With the hood closed, grab the back above the wipers and see if it moves. If not (and assuming the bump stops have been adjusted correctly) then I'd say you have a faulty hood latch that's not holding the hood tight against the bump stops.