I read this at the Gazette and was really pleased, it seems like a really good use
for twitter (but better to have one for each county, not one for the whole state).
For the inauguration MDSHA used twitter to give short updates about road closures and traffic. There are dozens of updates on the 19th and 20th, but nothing since. This type of service would have been great during the snow and ice this week, hopefully they will revive it.
There's an interesting privacy twist to this. If you are one of the 187 people following them, then pretty much anyone can figure out you live in Maryland.