Phone call

Mom: Where have you been? Why haven't you called until now?
A.: I haven't had time.
Mom: How have you not have time?
A.: Well, I didn't get your first message until 11pm last night and didn't want to call that late, and today I've been scrambling since the morning.
Mom: Well, okay. As long as you're home. Are you home?
A.: No.
Mom: Where are you?
A.: In the lobby of a museum.
Mom: Why the lobby?
A.: I'm waiting for a friend.
Mom: Okay, as long as you're safe.
A.: I'm safe.
Mom: Good. Have fun at the museum.
A.: Thanks. Bye.

***
That was preceded from a (second) message from my mother, saying I'd better call or she would be so worried that she'd have to take "radical" measures.