9-1- what?

I don't get this sign, it is on the outside of the cabinet that holds the containers of Blue Rhino Natural Gas. If you look in the lower right hand part of the sign you will see an emergency number, however what I don't understand is if you are at home and have an emergency (def.-a sudden unforeseen crisis (usually involving danger) that requires immediate action) involving said Blue Rhino Gas Containers You would -A) need to call the store to go and read the number to you so you could then call the "emergency" number. B) Go to the store to get the number to call during the emergency. Or perhaps the emergency happens to the cabinet full of Gas Containers, which would in fact leave you without an "emergency" number when the cabinet itself blows all to hell. ??