No, I haven’t seen it. With John Candy, I’ll bet it was very funny.
A “food repair shop” you say?
Now there’s an original idea!
Here it is. I saw the original in the 80s; it’s now on YouTube. Look for the part where Paul Simon brought in a bag of pretzels with the salt missing.
https://www.youtube.com/watch?v=JCxscU0hWok