I would not spray paint the rims. Every time I've seen someone do this, the paint flakes and peels off. It is hard to hide those type of colors, so if I were you, I would play-up the color. Maybe get bike gear in the future that matches that color such as a helmet, gloves, reflective tape (to go on your bike and stuff), etc. Or...play it off like you are a sports fan for someone like the Minnesota Vikings/North Western University or Cincinnati Bengles/Florida Gators.
Being noticed is a good thing when you are on the road and in traffic. I would go with it.