After the cart is loaded up with the equipment from the warehouse, Jack races along with it, steering much like he drives the SUV but with slightly more care since it doesn't have the same suspension. And coming through the armoury from the garage, well, wouldn't want to crash the cart into a weapons case. It's not the time to get explanations from John (and that takes a lot of "not NOW, John!" to drown him out); that can wait until he delivers the equipment and sees Jenny's condition.
He's only a little surprised to see that Tosh is back from her excursion, but he's very surprised to see her with a gun standing over the med bay. Right, no time for all this.
"Hey, eyes over here! No time for whatever this is!" He gets the cart pushed in before he starts firing off orders.
"Tosh, put that thing away-- actually, hide it from John. Doctor, you can chew me out later for not following impulsive orders. We got his stuff in case you need it for Jenny and you'll probably end up eating your own complaints. Tosh, computers. Should be no problem for you to cancel out your final logout and if it gives you hell, Ianto can restore access, because you're gonna need it. We'll figure out your status later. Rose, fourth drawer to your left, there's a little device with a screen and lenses along the side, Bekaran deep-tissue scanner. Get that out for the Doctor, then I want you up here with all your lovely extra knowledge, you and Tosh figuring out what this equipment does and how it might help. Ianto, start a Rift activity trace, find out what the hell went on in that warehouse. I'm gonna play nurse for the Doctor."