I normally brew my own coffee (I roast my own beans at home), but went this morning & got a tall Pike's Place. I paid with a $2 bill and also tipped with one (which was more than my order). Lady behind the counter commented on the $2 when I paid, so I explained the reason for it. She just had a glazed expression & said "Oh, ok..."
I gave my wife a couple of $2 bills for her to use when she got out as well. She went through their drive through and had a similar experience. I'm not sure how aware the people behind the counter are of all of this, but hopefully it will filter up...