I have tried all the previous answers, where can I find Heinz Spicy Brown Mustard online?

It is not on Heinz web site or at any of my local stores in Virginia. It seems to be only sold the Pittsburgh area. My father inlaw loves the stuff and I’ve grown to like it also. I have tried all the mustard stores I could find online also. There are plenty of recipes online but no way to buy the mustard.
The first answer I received was for foodservicedirect.com but I would have to order 3 cases. I dont mind buying a case, but 3 is a little bit much.