Target link is pointless, as it doesn't list the price online. You can use it to check stock but Brickseek is probably your better option.
Just picked up Rise of the Tomb Raider from a local target for $11.98. I noticed that Brickseek had it listed for that price. When I got to the store it was still marked the 19.98 price. I asked an associate and he checked the system and found that the price reduction was waiting and activated it.
Obviously very YMMV, but two stores have it listed at the new price and in stock near me (Twin Cities area MN) on Brickseek. Many stores are still Out of Stock from the $15 Black Friday sale.
PS4 Brickseek Link [brickseek.com]
Also some stores have the Xbox One version for $9.94.
Xbox One Brickseek Link [brickseek.com]