Lost fob key on high speed

I bought one, it is my understanding that once it starts it keep running and does not check the proximity of the key like a car. if you get a replacement ($250 ish) get a Tile key fob, you don NOT have to replace the entire key system! just wish i could send you my dealers number. get two remote keys now., good luck Alfred.
 
He has no keys. He does, in fact, have to replace the ECU with the keys.