How would you react to this situation?

I work at Mcdonalds. The other day, I was in drive thru taking orders and I forgot to upsell a few times. My store is crazy about upselling sadly. Anyways, the store manager found out and said it to me, and I said I was sorry and that I just forgot to.

So then, she says to me "Well, how would you feel if we forgot to pay you?"

I said "I'd be quite upset about it. Wait, are you THAT upset about me forgetting to upsell a few times?"

She says "Yes, I am".

I said "oh...". So then she leaves, and afterwards I think about it and think that she went overboard comparing me not getting paid, therefore not being able to pay my bills, and possibly being homeless, to the owner of our store not making a few more bucks, but still being rich none the less. I felt like she could have just said to not forget to upsell and leave it at that, instead of the extra comment she made.

Does anyone else think that she went overboard with it, and how would you have reacted to it?