Honestly, this is like hell for Matt, especially with his newly acquired vision implants. Not only is there way too much noise and too many smells, there's too much to see and he's so not used to seeing anything at all. Add to that: he's wearing a YELLOW jumpsuit, which seems to make him a target. He's not trying to hurt anyone, but he sure as hell is going to use all of his combat skills to defend himself. He's actually doing alright as long as no one pulls a gun on him or throws a grenade his way, but he's getting tired fast (he hasn't done this in way too long) and when he notices the car seems to be taking people to safety, he flags it down. He wants to get close to the Specials HQ and make his way there on his own. He won't tell Parker that location though, he'll just give her something vague close enough that he thinks he can make it the rest of the way.