This low level stuff is distraction. This was not an effort by a few people here or there. It didn't involve just a few hundred/thousand votes. It may not even involve actual ballots at all. Somewhere in the larger process of counting votes they were able to inject themselves.

A comprehensive statistical analysis will be all the proof that is needed. A simple hand recount compared to the vote tally we've got now in a specific area will show large discrepancies.