So someone on a different site made a track with a script that randomizes which side of the track you go on.
Here's a link to just the script part of it.
Credit to that user who made it.
http://pastebin.com/tKCCpXAE
Edit: Track is uploaded here now
http://www.coastercrazy.com/track_exchange/detail/20175
If someone has the time or wants to dive into this to figure out how the randomizer was implemented, feel free, I'm sure many would benefit from it.
Tetsu: Welcome