What's the ruling on Animated Spray's? (Wasn't sure where else to ask this, and since this is a sticky about spray's I figured why not!)

I'm using an animated spray of a CT who's shooting, and I've been placing it at strategic points around maps - like at the end of the tunnel in Italy - to try and confuse the other team, but I was told by an Admin that the spray might be off limits. They didn't know for sure, so I've been avoiding using it.. Just wanted to know if its cool or not?