Just as an update, for all those that are interested in the inner-workings of my gastrointestinal tract, I feel fine! The sauce didn't affect me at all!
But then my preservation issue become worse! Normally I wouldn't be able to let it sit in the refrigerator long enough to expire, but I bought a big bottle of Alfredo Mushroom, and I've been so in love with that that I forgot I had an already-open bottle of regular Alfredo.Everyone knows that alfredo sauce can only be made with fresh cream...