If you're caught cell-driving, you either pay a large fine, say $750, or you submit to a program that bans talking while moving faster than 5mph for the next two months. The cell carrier will monitor the ban and issue citations by SMS.
So if you opt into this program, and then you're driving down the road, start talking on the cell phone, and then 30 seconds later BANG! you get a text message: "That call was $75 payable to the city hall before the end of the day". Yeah, you can't talk on the bus and stuff, but that's the "punishment" part for ya.
It's worth a try, I think.