Just went to 3 stores here's the verdict:
First store had the signs for 10/$1 and B2G2 up. Got 8 games, all under $3.99. They did not ring up as B2G2. Manager had to hit some buttons and the receipt said "Promotion not Recognized" or something along those lines.
Second store had an employee (not the manager) literally scanning each PS2 disc only game to see if it was sellable or not, and throwing the non-sells in a box. He said a bunch of the PS2 games were not able to be sold, like old sports games and such, luckily my Colin McRae 3 was sellable. They had no signs up in the PS2 section and knew nothing about new promotions, but no 10/$1 or B2G2.
Third store tried to sucker me into buying more crappy games. It is what I call the "PS2 Hub" store, since they are one of the stores that receive the PS2 stock from other stores. Manager dude said both sales were strong, but the 10/$1 was basically wiped out and didn't have time or money to look for B2G2 ones, but he said both sales were still on at that store. We actually have a pretty decent PS2 community around that store as well, they actually still get a good amount of stuff traded in.
Looks like it could be YMMV on if you get the sale or not. No idea really, but if they go to $4 for everything under $10, I am gonna buy at least 10-12 more games. There is a lot of killer stuff in that range.