16925 - Harbor Blvd from DLR to Knotts (stop "A" on perlster's map)
28500 - La Palma Ave eastbound towards DLR (stop "*" aka "D")
Send a text message to 41411 with the text:
metro 16925
metro 28500
Seems to work pretty well (try it at home!). I imagine this would be pretty handy if you wanted to stay as long as possible at Knott's and/or avoid waiting an extended time at either bus stop. I believe the data is based on the GPS location of the bus, not on the schedule, so for that reason it's more accurate than a printed schedule.