Spoiler alert, Zesuko, the alarm is already set off. There is a pitched battle going on not thirty yards from the building.
If you ask me, since we're no longer able to insert by the roof, the best course of action would be to act as quickly as possible and extract the VIP, since stealth in a warzone the enemy are intimately familiar with and we have never seen would be a very risky and unwise proposition. Also, the VIP might be trying to escape soon, once he realizes that he is not going to win this fight, and any time we waste will make our jobs more difficult and place our comrades in more danger.
But, fuck, what do I know? The whole point of my post is that Adam's job is not to reason why: his is but to do and die.