Rude photographer uncle

So my husband and I are actually already married, but we could use some advice on something that happened at our wedding. Prior to the wedding, we were being pestered by multiple friends and family members who offered to do photography services for "cheap". We decided to forgo any potential drama and just hire a professional, who turned out to be amazing! Anyway, my husband has an uncle who is more of a hobby photographer and he offered to photograph the wedding. We told him we hired a professional and that was that. Fast forward to the wedding, myself, BMs, the mom's, hair and make up, and the photographer are all in our room getting ready when this uncle literally barges into the room we're in and asks if he can take pictures. We are all pretty uncomfortable as we are getting ready and we turn him away(I'm pretty sure he got to the venue hours early assuming he could take pictures). I'll continue this in a comment.