Aziraphale laughed softly. "No need, my dear." After all, anyone who wanted to go into his room for whatever reason (Crowley, Beelzebub) would be more than able to get into it even if he did lock it up. "Are you well enough to walk now, dear? I wouldn't mind pushing the wheelchair again. Although I must say you look much better now than you did when we went to go get ice cream!"