The rock that hits his shoulder doesn't do much more than sting briefly, the surprise of it being what makes Apollo jump more than anything. He whirls around about as fast as he can with his boots trying to stick in the mud, then adjusts his hat against the glare of the sun as he looks up at him. It wasn't anyone he'd seen around the city before, and with all those bullets adorning him, he could only assume the man was some sorta bodyguard or mercenary. Someone that went around looking for trouble, in other words.

"In a manner of speakin'. More like someone dropped it for me. So you'll have to excuse me if I'm not too presentable at the moment, stranger."

With that, he leans over to grab one of the handlebars, yanking his bike up and out of the mud. Apollo's not too sure if they stuck it there to make a mess, or out of some sort of mercy so the river wouldn't wash it away, but he could see from here that the thief's trek down the bank had left another set of tracks. So now he knew the thief wore boots, which only eliminated, oh, the extremely small number of folks around here that didn't own a pair.

With a slight frown, he sends a sidelong glance at the strange, but from here he can't see a smudge of dirt on the man. Apollo didn't seriously think someone he didn't know would've taken it, but him showing up like this was a little suspicious all the same.