I (24F) got into road rage incident with boss (40sF) and I don’t think she knows it was me

This morning I went to a drive thru to get a morning coffee and there are two lines and you’re supposed to alternate cars (there’s ample signage) then drive up to the order screen. One line had one car and one line had no cars, with one person already ordering. Because my line was next, I drove up right to the screen.
The person behind me lost their **** about this, honking and yelling and driving up to my car. It was scary. But then I recognized the voice and I looked back and it was my boss! I don’t think my boss recognized me or my car, but I paid for her coffee and kept driving.
I left my coffee in my car and went into work like normal, and she waved and said good morning to me like normal.
My worry is that she eventually recognized me and I don’t know how to bring it up, if at all. This is a fairly small workplace so I don’t have the option of asking someone here for their advice, even HR.
TLDR; my boss road raged at me seemingly without knowing who I am and I’m not sure if I should ignore it or be upfront.


Source.

Tell her you won't report her to HR if she gives you a bj