"Hey-" Steve called out, making a run to window, swearing under his breath, glass crunching beneath his feet. His head craned to follow her progress, a hand coming to grip the bridge of his nose before hurrying to get into costume. Not because she had asked, but because it could offer him some protection, something he'd definitely need without his shield.
He got to the roof by his own means, stepping out of the shadows, no longer Steve Rogers, but Captain America.
"I'm here, now stop these games. Give me the shield."