It's Electronically Sealed, so I think Marc could use "Weapons Jinx" minor power on it. That'd shut the electronic seal off and open the door. However, Marc isn't tech-good, so she just see's a keypad.

Orla could pick the lock, I think Milo might be able to help her out with his Tech-use skill.

Alternatively...if the garage is open topped, we could scramble someone over the top of it. Someone with Climb or marc could use Wall Walk minor power, and open the door from the inside. But we have no guarantee that there wouldn't just be a keypad on the inside too, so we'd be back to square one and with a split party.

Breaking the plexiglass is tempting, but with no means to suppress the noise it'd make, not ideal.

Someone could also go back and steal one of the purses next to one of the women sleeping by the pool. That'd probably have an ID/swipe card too.