Airline pilots typically earn their 1500-hour minimum for their license in "small but conventional aircraft" so the odds of them mistaking one for a jetpack is approximately zero.
Please watch out for motorcyclists. The blindness people have for us is astonishing. And terrifying.
On motorbikes I've had drivers in side roads look me in the eye and then pull out. On occasion I've ended up having words, and it's always "Sorry mate I didn't see you".
Ah, the SMIDSY: https://www.youtube.com/watch?v=eqQBubilSXU&t=387s
That video covers the optical illusion that leads to it and what motorcycles can do.
Will they confuse a seaplane for a blimp? No.