"What would happen if people actually found the Ark?"
Well, considering that for (not taking into account the fact it - if it existed - was merely made of wood) such a craft to hold at least two of every species that exists today; and have feed storage/livestock exercising facilities (to say nothing of crew quarters), said 'Ark' would have to be far larger than the Jahre Viking, the biggest ocean-going vessel that exists to date. Now, keep in mind the so-called 'Ark' was made of wood, then consider this:
The largest wooden ship made to date was the French vessel Rochambeau. In 1874. It sailed only once.
'She was not particularly stable or seaworthy, even with her substantial metal components, and only made one voyage in the open ocean to reach her new owners.'
'scrapped'
http://en.wikipedia.org/wiki/List_of_world%27s_largest_wooden_ships
I don't see any mention in the Bible about your so-called 'God' intervening in keeping said craft seaworthy. The concept of 'Structural Integrity Fields' didn't exist until "Star Trek".
Nor is there any mention in the Bible about having said animals 'miniaturised', nor having just tissue/cell samples of animals, for later regeneration/cloning, post-flood abatement. Nor is there any mention about Noah being a Gallifreyan Time Lord, and his craft being a TARDIS.
PROTIP: The Don Bluth animated film "Titan AE" (with the eponymous combined DNA-archive & life-seeding-cum-terraforming ship) and the anime series "Kiddy Grade" (with the Nouvlesse-population-carrying & terraforming/transforming ship/mecha 'Deucalion') are not documentaries.
So, in conclusion: 'What would happen if people actually found the Ark?' Considering the above fact, the only answer to that question is this:
If.
[/Spartan Laconic Wit]