I think you're above playing word games. Of course you have no right to access. He doesn't have to meet with anyone - that's access. Now free assembly, free speech and redress of grievences are protected.
When el Presidente (and I'm going to call him that until he stops acting like he runs a banana republic) goes out in public, he most certainly is going to have to deal with free assembly. That's the whole reason its protected in the first place, so you can protest the government. Well, he is the government.
If he doesn't like it, he can run for office in Singapore.