Pacing you so he can testify to your speed is my best guess. Possibly you were weaving slightly so he was watching your driving behavior to testify to your driving if he had arrested you for DUI
We have no idea how many you passed. It's perfectly possible to not get arrested failing a test. Some people get nervous and bomb the alphabet test but pass the others. Others don't have good balance so they suck at standing on one foot even completely sober. That's why we do multiple tests, to make sure the failing is due to alcohol/drugs.
Pittsburgh Pirates- 1st place NL Central 7/15/11
They've got us surrounded? Good. Now we can fire in any direction, those bastards wont get away this time
An amateur will train until they get it right. A professional will train until they can't get it wrong.