Hi Prodigy,
Been there too. Got a DUI back on May 10, 2010. (I'm in MD) Blew a .22. Spending that night in jail was the scariest thing ever and the darn cops were so rude to me. That being said, I had a great attorney and since it was my first offense I was given 1 year unsupervised probation, a fine of $350, went to classes and either had to get one of those interlock devices installed in my car or have my license suspended for 90 days. I took the suspension. I've heard those devices can create havoc and can be very costly.
Good luck on Friday and try not to worry. It'll be okay.