“No charges will be filed and no DoJ INVESTIGATION ... right?”
You are most likely correct, but the entire election should be declared null and void at the revelation of this fraud. The fact that the public will accept this as an isolated and unintentional accident is indeed sad.
The online version would be searchable, by your personal alphanumeric code - and you could then verify that your vote was actually given to the person you voted for. The paper version of the data would be for cross-referencing and would help assure that the online data was not tampered with. No personal information would be associated with the randomly generated personal code you were given, and obviously the code that you received would be different for each election that you voted in.
Combine this approach with a national ID card and I think things would be a lot more trustable.