Ya, cuz being a dope with the munchies is so much classier.

I wouldn't be surprised if Paul's wealth and fame and status as British royalty very much helped him get out of jail. You know the routine.
I'm just glad it was marijuana and not something gross like cocaine.

Also, I believed he was banned from touring Japan for a few years.

If I remember rightly, the official story is that after 9 days the Japanese authorities felt that Paul had learned his lesson and they decided he didn't need punishing further.