When your pre-addressed, postage-paid Mail-in Ballot envelope is missing the "City, ST ZIP##" line in the To: address...
Really, guys? I mean, never attribute to malice that which can be explained by a query error, but that one is dang disheartening, VA.
We reported it to my state's Dept of Elections, who said they are correcting the error. All this to say, it might be worth a second look if you're dropping your own ballot in the mail.