So dark Spiderman finally decides to get rid of the symbiote that has been poisoning his thoughts and making him dance.
We know the symbiote soaked into Spiderman's costume, so when he tore the symbiote off, he tore off the costume.
But what about his underwear? - The symbiote would soak it too.
Being from an alien world, it would have no concept of genitalia, so would have NO ISSUE settling next to a knob and balls.
It would NOT respect underpants as a boundary.
So Peter Parker is in AT MOST just a pair of boxers, but PROBABLY completely naked, at the top of a church tower.
To make matters worse, New York is a highly populated area and the bell tower's been sounding unusually, and loudly, for about five minutes straight.