Contact Lens

I read a joke in this link:
arcamax.com/jokes/s-96174-383199

which one is correct? : on his driveway or in his driveway ?

The teenager lost a contact lens while playing basketball in his driveway. After a fruitless search, he told his mother the lens was nowhere to be found. …

Hi,

‘In’ suggests inside/in the area of. ‘On’ suggests on top of/on the surface of.

Alan

thank you Alan