As has been stated, the crosses appear to be on public property, possibly in violation of county ordnances regarding roadside signage.
So, IF it is true that these crosses were on public property, then some people here are saying that THAT makes it o.k. So let's follow that to it's natural conclusion. If there is a flag, or anything for that matter, on public property, we have the right to vandalize it. If it's on public property, it's not illegal and wrong. If that is what some are saying, gosh, I never new that. LOL