His primary question wasn't what to do or not do -- the seizure was over by the the time he contacted me.
His question was "Does this person need to go to the ER or just make a doctor's appointment".
And here is the answer: If this person does NOT have a prior history of seizures, they always need to go to the ER. You should call paramedics as soon as you can/
They need a full neurological workup and monitoring.
Seizures can be either the problem itself (seizure disorder, in which your seizure threshold is just very low) -- or a symptom of a different problem. Stroke, for instance, or a bad drug interaction. Or a tumor. Or a million other things, some trivial and some not, and some -- like a stroke -- where speed is off the essence.