How to get text updates from Unified Command during Carmageddon

Here’s the good word:

The Unified Command for the 405 Freeway closure will be providing periodic messages related to the closure to the public through a system called Nixle.  Anyone who has a text capable phone or an e-mail address can subscribe to receive these messages.  To subscribe to the messaging simply text the keyword:  “405FWY” to the number “888777” on any text capable phone.  Once subscribed the public will receive messages directly from the Unified Command about the 405 Freeway closure.