It could be, the wheel wasnt clean enough, dirt coulda caused it, or the surface wasnt smooth. Theres a few reasons this could happen.

Just looking at the rim, the paint looks really rough. Im guessing this paint came out of a can, is that right?

The wheel I think was clean enough and the primer before the paint went on perfectly smooth. It was out of a spray can.

Yeah, paint out of can, can come out clumpy/thick.. it'll be interesting to see what the sand paper will do, would say this, if you're gonna mess with it before saturday.. you wanna get a bucket with water and dish soap.. you'll need a sanding block, they're cheap. A hose. The key is keeping the sand paper, and the rim wet constantly while you're sanding the roughness out. If I had to bet, it'll look better than what it does now if you do it right.

I'll just wait till Saturday to do that.