How far is Herndon from Gathersburg? I assume just a short drive but not sure of the geographics. That town in Maryland better get ready, because all of the people being pushed out of Herndon are not going back to Mexico, they will look for other communities nearby. If there is any magnet effect there such as a day labor center, you can be SURE the clergy/laity will get the word out in Spanish and you could see the community overrun there.
At rush hour it's about as far as Tokyo. Not sure about Gaithersburg, but Herndon has somewhat run-down townhouses and some crummy apartments that are almost all hispanic. Those weren't too far from the old day labor center. I doubt there will be much of a crackdown there, but maybe a few less illegal drivers around.
One of the activists said as much, "We want Gaithersburg to be known as a welcoming place!"