Some are more paranoid than others. Should the easily paranoid be selected by surveillance pressure?
Stopping at rest area seems to be normal behavior. "Am I free to go?"
Stopping at the rest area was still fine, until the driver failed to signal and then hit the curb pulling in. Hitting the curb alone was excuse enough for the cop to contact the driver to check for driving impaired. Had he signaled and pulled in cleanly, there isn’t a darn thing the cop could have done. Not a thing.