YOU SAID:

I hope he doesn't realize it's just my expired driver's license

INTO JAPANESE

有効期限の切れた運転免許だけだと気づいていないと思います

BACK INTO ENGLISH

I think that's expired driver's license and haven't noticed

INTO JAPANESE

運転免許証の期限が切れているし、気づいていないと思います

BACK INTO ENGLISH

I wouldn't have noticed, your driver's license has expired and

INTO JAPANESE

私は、気づいていないと免許証は有効期限が切れていると

BACK INTO ENGLISH

And I have not noticed license validity period has expired and

INTO JAPANESE

ライセンスの有効期間が切れてを気づいていないと