On the Coupe it pops up for no particular reason whenever it feels like it. The SRT holds a refreshing beverage like it's been superglued to the console; go figure.
As to getting it open, have you tried a gun, dynamite, crowbar, Vaseline & shoehorn, pick axe, soothing words, epoxy on your fingertips (must hold fingertip on cupholder at least 4 hours minimum), WD-40, hammer-drill, circular saw, plastic explosive or, when all else fails, a small nuclear device (search old copies of Popular Mechanics for tips & hints)?
Oh, & the Search feature can be a wonderful thing!