Nick has to.be at his.school.for.9.u think.u.could.run him to the.school.for.me.?
from a 978 phone number, Monday, April 18, 7:45 AM EST

When I was first learning to write, I used to mark the spaces between words with dots, so I get what 978 is doing here. Granted, I was five years old at the time, but it still makes sense. I mean, what does a "space" look like, anyway?