If he got hammered on this it was probably a result of 9/11.
Dont Laugh. Government folks are playing catch-up of all this type of stuff with funds allocated as a result of 9/11. They also have a bit more power to look into things that normally require a warrant.
Further if he had done nothing to draw someones attention, I would bet a wooden nickle that he pissed someone off along the way and that person loosed the hounds. Someone was looking for something to hammer this guy.
Not to say what he did was not wrong, but the odds of it getting through without 9/11 and a dime dropper are good enough to take to Vegas. Seems if the convictions were in 83 and 95 Im probably right.
I guess Acgaricus Bisporis does not drink....or has not yet been caught. DUI/OUI has sort of been like Retractable landing Gear. There are those who have and those who may.