Well, it looks like the cycle is still there. What I ended up doing was changing out most of the water, adding enough ammonia to get it to about 2 ppm (if I remember correctly) and adding the fish food right before I left. I think I dumped way more food in there than I needed to because I was afraid of not adding enough. I put in probably 2 tsp the night before I left and 2 tsp more right before I left. Probably big time overkill. But like I said, I was paranoid.
Anyway, as you can probably imagine, the tank needed a thorough cleaning when I got back.