In some states (including Texas) you could always openly carry long guns walking down the city streets. That was even before constitutional or concealed carry.

I actually saw a legal sign the other day at a Super One grocery store in East Texas that prohibited open carry of a long gun in their store. First one I ever saw. Normally you will see the "30.06" signs for "no concealed carry" or the "30.07" signs for "no open carry", both of which are usually for handguns. Texas has strict regulations on their legal "no guns" signs, with rules about placement, color, and even required text size for a store to legally prohibit guns. If they aren't a 30.06 or 30.07 sign with all the required text, they aren't real. The little gun with a red circle/slash "no guns" signs are not legal. Some places put those up to appease the Karens, while signalling to concealed carriers that they don't really prohibit them.

About a year after I started carrying all the time I was going to a jewelry store with my wife to buy her a new ring to replace one that broke (the setting). We got to the store and I saw the 30.06 sign posted legally. I told her to go get the manager and bring him to the door. When he got there I showed him the $4000 stack of hundreds and told him that was going to be spent in his store until I saw the sign, and that I would never patronize his store as long as they had that policy. He offered to let me in as long as I didn't "show my gun" and I just told him he was a hypocrite, and I left. I got my wife a ring from another store that didn't have the sign.

This man hunts.