A Guy Called Tyketto wrote:
A group of friends of mine visited LAX Tower, and had no
problems.

A friend and I visited our tower last week. No identification required.
We have been flying there for over a year, and they know the airplane is
hangared/home there. It's nice to have *a little* familiar rapport with
the controllers if you have time to meet with them outside of the calls
themselves. Our tower encourages that among tenants of the airport, they
even have BBQs to facilitate it. Makes for a more friendly, cooperative
environment, IMO.