Help a truck driver in need

I have been an over the road truck driver for almost 3 years. I had an incident last December. Driving through a blizzard in Wyoming, I went through a road closed barrier. Never saw the sign because I was constantly cleaning the windshield. Anyway I am looking at 18 months jail, possible license suspension and/or $3500 restitution for the barrier. That's it in a nutshell.. I am a sole supporter for my family and am on the from 5 to 7 weeks at a time before I head home.  I can sure the help, because I don't know where else to turn.