The Stovebolt Site Forums The Shop Area Paint and Body Shop Door Art legalities

Found a local guy that does door signs and he is the last in the area that has the ability to paint them instead of just creating vinyl signs to stick to the door. I want the Door sign for my Grandfathers Plumbing shop recreated, this was his truck from that shop, but it includes a phone number to a shop that hasn't been around for 35 years or so. There is no area code and the shop was in MT and I live in TN now. Any body have any problems with these old door signs causing problems with old phone numbers?
I called the number and for now its not in service here locally so it shouldn't be a problem here. Just want to know if there are any legal issues to consider before I do this.

I'm not aware of any issues with it. There's a fellow in Wichita with a Ford panel truck that has business art from the Denver area on it. The phone number on the truck is a local (my home town) prefix and no one has tried to make trouble for him. He told me it's the correct prefix for the town the truck was "born" in. He said he just recreated what was on the truck when I bought it.

I have one on mine uses the exchange for the first letters instead of numbers, so many extra numbers now then there was then. I have had no issues, some old timers remember when they had the same exchange number.
https://www.flickr.com/photos/advance-design_parts_co/8129179759/in/set-72157631867396207

Thanks guys. I'm going to put it on there and on the slim chance someone has an issue I will deal with it then. I don't see how they could but you never know these days.