Judging by the blood pouring down his face and the way his hands shake, probably not. Cas spits out a gob and coughs; his nose is obviously broken.

The waitress is quite suddenly in front of Dean and grabs his wounded arm in a crushing grip, wrenching Castiel away from him and throwing the ex-angel to the floor. She stomps a foot onto Cas's chest and pushes Dean back into the booth. "Sit down, tiger. We're going to have a talk."