I just did a face-to-face with Caesar and dealt with the securitrons. Now I am ready to leave and need to get my weapons back. No one will give me that conversation option. How do I get them back?

Secondly, is there a keystroke that automatically holsters your weapon (without you having to unequip it)? I know 'R' draws your weapon.

Thirdly, how do you turn off your pipboy light?

Any help appreciated.

Ralpion

1. Leave (do NOT use fast-travel, leave via the gate you entered.) You'll automatically get your weapons back.
2. Press and Hold R to put your weapon back into it's holster.
3. Press and Hold Tab to turn off your pip-boy light.

Thank you so much for your help and your speedy reply, Marrs. I didn't realize I needed to go ALL the way out of the fort to get my stuff back.

Or, just leave the Cell you are in.

Not if you're outside.

Pip-boy lights automatically shutoff when leaving an interior to an exterior, unless they changed it from FO3. Otherwise, they stay on until turned off manually.

you can use fast travel and still get them back

What truehitman2010 said is true, you get your weapons back when you fast travel, I did it myself.