Twitter the Misinformation Service?

Don't get me wrong I generally sing Twitter's praises, but there doesn't seem to be a lot of discussion on the ramifications of latent message delivery.

Recently while stuck in traffic I posted a message to twitter via text message with details about the location and exits affected so as to help others in my network avoid the same headache. Only later that night when I started getting replies thanking me for the info did I realize that the message had gone out 7 hours after the fact!

Whether this delay was caused by the cellular service carrier or Twitter it's self, who's to say? Most of the time if I get my friend's coffee break update belatedly I'm no worse for the lag- but this event underscored how delayed information can have real world ramifications; thankfully in this case that was limited to people taking alternate routes. But this does leave the mind to wonder what other events could occur... missed flights?, meetings?, worse?

Perhaps Twitter's TOS needs updated to make clear that it should not be depended on for real time delivery... before it's too late.