Update: Delta Makes Good with $100 Voucher

After I sent my blog post to Delta, I was contacted by their Customer Care Department, who let me know in detail what the goals of Delta are:

Our goal is to offer meals and snacks that our customers enjoy.
Our goal is to make sure your flight is enjoyable, and training is provided to our employees to ensure a consistent and pleasant travel experience.
We want flying on Delta to be pleasant and regret any role we played which caused your travel experience to be otherwise.

All in all, the last portion of the email detailed a voucher for $100, as a goodwill gesture-

As a goodwill gesture, we have issued our electronic Transportation
Credit Voucher which may be used toward future Delta travel. eTCVs are
valid for one year from the date of issue. They may be redeemed at
delta.com, Delta Reservations or at any Delta city or airport ticket
office. Redemptions at delta.com will not incur a transaction fee.
Fees will apply if voucher is redeemed through any other Delta location.

I'm a big letter writer- whenever I feel that service has lacked at a place of business, I'm always all 'Oh, trust me, they're getting a letter!.' However, you have to remember to recognize the good, as well as the bad, so I send letters of praise to places, too! In this case, I'll definitely let Delta know that by stepping up, I'm a little bit happier. Yay.