A Proposition - or an inquisition?

I found a paper folded into a grasshopper shoved under my door. Being the slightly suspicious type, I automatically dissembled it, only to find this note written in a tiny barely legible hand:

"Hello, Ace. Now, relax, you can put that lead pipe down. I don't owe you that much dough, do I?
Check out the Blue Frog Coffee Bar in Cortland sometime. It's in the downtown, lots of alleyways to duck down, and the place is a fishbowl. You can see anyone coming a mile away if they go an inch.

And, I hear Jo may be there. Check it out. It'll be worth your while, if not for the coffee.

Yers,
Uncle Bruno
(PS--if you go in, go in hot or not at all. Just a friendly suggestion)"

It just makes me think - do I go north for the rendevouz?