Except for the lady in London who was fined for taking a drink of water after being stationary in a traffic jam for 10 minutes.Regards to the “touch a phone” part.
I think you’re incorrect. I believe you can touch your phone if it’s on a dashboard / windscreen Mount etc.
Also regards to the drive through part, you may be right technically but no Bobby would ever do you for that. If you’re on the phone but are stationary with car in neutral and handbrake on, effectively the car would be parked safely and you’d be fine.