That would be extremely doubtful if the man was there four minutes after the polls opened. That would require someone to have signed on his line within those four minutes and the poll watcher is supposed to check that the man signs on the right line.
Don’t forget the THUGS who are in charge of most of our State elections infrastructure and overseeing them all is the biggest THUG of them all.
Apparently there is early voting in Virginia - the man said, “...nor did I vote early.”
So his name could have been voted under during the early voting period.