Today (5/11) Only!
I think this should be a price mistake, so I put YMMV on the title, but I'm not sure if Fry's corrected the mistake since I already used my promo code.
Patriot Viper Red LED DDR4 2666 16GB memory kit, is marked at $169.99 right now on Fry's. With your unique promo code (you have to sign up for Fry's promo code), the price is brought down to $114.99. It also comes with a $10 MIR, so finally price before tax is $104.99.
The promo code is supposed to bring the price from 224.99 to 169.99, but the public price is already at 169.99, so the promo code deducted another $55.
I was able to apply the promo code in the morning to schedule a pickup, and I picked up at around 6 PM. You still have a few hours to pick it up if you have a Fry's store nearby.