As Bees said, I have no clue how they go about sending the tickets out. I live about 6 minutes from the Dome and received mine on Tuesday. This wasn't a renewal though, I just bought them the first day they became available.
I wouldn't get too nervous about it, but I hate buying tickets over the phone and waiting for them in the mail. Just from the potential hassle of not getting them, canceling them, and then having to resend them again. I would have rather drove up there and receive the tickets that way.
Also, does anyone know what's going to happen with the Manley parking? The day I bought our season tickets I tried to buy a Manley parking pass, and the lady said they weren't quite sure if they were going to allow parking passes for Manley this year (she said to see in a month or so). The only other option was the UAG lot, or something else perhaps, so I decided to wait. I waited about a month and called the box office and the lady said she could sell me a Manley parking pass, but it wasn't a sure thing for next year, and the best way to go about it would be renewing it early. The lady I spoke with on the phone said that they were moving all of the employees to Manley and that was the reason why they were unsure about it.
Personally, I think Manley is the best place to park in my opinion. I have no idea how many employees there are that would park in Manley, but I'm guessing it must of been a pretty good number.