No offline racing?

Just purchased a house and moved to South Florida, made sure I had all my sims up to date before the move.

Setup my rig today (forgot how much fun hiding 300 meters of wiring is) fired up Raceroom and denied.

I guess I'm late to this party and my ISP won't be around until early next week, is it true we cannot play Raceroom at all if we're not connected to the server?
If so, why is that?