Tariff Question

Some weeks back I bought some frozen scallops from Wild Fork foods.  So far, I had two serving from it, tonight I'll have another and one more left. When  I took them out of the freezer, I noticed that they are labeled "Product of Canada"
Half way through this $22 purchase, a 25% tariff on goods from Canada has been imposed.
My questions:
Tariff on the two servings is $2.75.  Do I pay it all at once or pay when I cook each serving?
Do I make the check payable to President Trump or to his boss, Elon Musk?