Pour half the marinade over your steaks, then flip and repeat with the other half. (Or, as you might already know, Ziplocs with the air sucked out of them once you put the steak and marinade in are a great way to get the marinade to take more quickly and effectively.)
Since these were roughly 1-inch thick steaks and I was going to grill them shortly, I let them marinate on the counter for an hour before grilling, flipping a couple of times in the process.