@Astro--a few of the folks in our fleet who visit Del Taco on a fairly regular basis have offered to get codes for us who don't have access to that restaurant. If you're playing and want one, PM me and I'll see what I can dig up.
Also--if you want a free TOS uniform, check out this link from Beckett's Massive Online Gamer magazine's site:
If you've always wanted the Wrath of Khan admiral uniform, the code for this is:
JIH MUSHA SOH .
To enter the game codes, log in to your profile on startrekonline.com, click 'support', then 'redeem key', and type or paste it into the appropriate spot.