If you that concerned just take it out put it on a plate with some sw on it, take out your tweezers an give it a clean

No dental pick?
Really small screwdriver?

Limpet?

That was the first thing I thought when watching the video as well

I can't find the snail he's on at the moment so he'll live to see another day. He is kind of cool in his own parasitic way I guess. I just wish there was a way to tell if he is doing harm or just hitching a ride.