You have been cited under § 1.01 of the Public Courtesy Code: Sudden Stoppage in a Public Way
IT'S CALLED A SIDEWALK.
The clue is in the name. It is a side WALK. You came to a dead stop in the middle of it — to check your phone, to greet a guy you know, to simply exist — and forty people had to route around you like water around a rock. Pull over. Buildings have edges. Use one.
This is not a fine. There is no fine. Think about what you did.