That's funny at the niner game last Sunday I was noticing the same thing. 95% of the jerseys I saw were either Garcia, Owens, or Rice (they were playing Seattle). Occasionally I would see a Peterson, or even one Barlow but that was it.
Regardless, he is a jackass. In the Niner game this past Sunday, in a critical situation, he got mad because somebody tackled him and threw the ball at the defender resulting in a 15-yard penalty for unsportsmanlike conduct.