I think this is absolutely the right answer. If the POTUS showed up at somewhere where I was and I had anything unlawful on me, I'd just leave. They don't have reasonable suspicion to detain me or search me if I'm trying to leave.The Annoyed Man wrote:I'd be happy to leave.
If I was legally carrying, I would assume I would either be asked to leave or the SS would secure my firearm until after he left. If I felt uncomfortable with them taking my gun out of my sight, I would leave.
Whatever your opinions of Obama, it's not every day you get to meet the current POTUS, so I would probably allow them to disarm me for the opportunity. After all, when he's there, it's probably the safest place in the US.
