Election Over- Thank You for Playing

I just learned of the following incident from an online acquaintance who lives in Texas (no offense to Texas- this probably happens everywhere).   Her husband worked late and rushed home to vote in the most recent election, to get to the polls before they closed.  He got to the polling place just in time.  In fact, the polling people congratulated him on making it in the door.   There, as in every place I've ever voted, if you are in the polling place when the doors close, you get to vote, even if there is a long line.  I once voted a good hour and a half after the doors closed, in a close election in Minneapolis.  So he and the polling officials both thought he was qualified to vote.  When he tried to vote on the electronic voting machine, however, the machine would not let him vote.   The election official told him to try a different machine.  That one would not let him vote either.   None of the machines would.  It turns out the machines were programmed, for the election, to stop accepting votes at exactly 7 pm, and there was no way to override.  This citizen, who had made the effort to get to the polls before 7, was disenfranchised.  
Now this isn't a security problem, and it seems like it would be easy to change the system so that the local polling official can tell the machine when the last votor in the door has finished voting, but it is yet another reason to be skeptical of electronic voting.  And it is worth noting that it is working people, especially those who punch a time clock or have their hours observed by a supervisor, who are most likely to vote in the evening after work.