There's an idiot in the other stall

I was barely sitting down when I heard a voice from the other stall saying:
"Hi, how are you?"

I'm not the type to start a conversation in the men's restrooms at a rest stop
but, I don't know what got into me, so I answered, somewhat embarrassedly:
"Doin Just Fine!"

And the other guy says: "So what are you up too?"

What kind of question is that? At that point, I'm thinking this is too bizarre so I say: "Uhhh I'm like you, just traveling east!"

At this point I am just trying to get out as fast as I can when I hear another question.

Can I come over to your place after while?

Ok, this question is just wacky but I figured I could just be polite and end the conversation.

I tell him, "Well, I have company over so today is a bad day for me!"

Then I hear the guy say nervously...