It depends on the "timeline" you're looking for. If you're looking for just drivers' "standard" HOS logs, then filter by: D, ON, SB, OFF, WT. The other logs (e.g. Engine_Powerup) don't impact the timeline of the users' status events.
p.s. Take a look at the new updates to mygeotab-php library. v1.1.0 is out. Any bugs you find - report those to github.com/geotab/mygeotab-php