Against the rules where I work, technically, its against the rules in the parking lot too, so Im told. but I leave the gun in my truck. My ffl dealer works there too, Ive bought several in the parking lot. We have lots of ccw holders in the plant, my bosses too, we go out and compare our shooters sometimes.
Fierarms are definately not allowed on work premises so even if I lived in another state I could not carry to w--k. I would be dismissed immediately. I do not have an issue with this because there are some people that would worry me to no end if they had a weapon on them.