Undertaking / filtering on left?

my mate just got fined for wheelieing the length of southport pier
fined for wheelieing without a front wheel in
done for being sat on his bike on a pavement n a few mates been done for 40 in a 30 riding down a hill
obviously nowt better to do

2 separate wheely incidents?
Where's this hill around southport where it's possible to do 40? Maybe I'm slow but I never managed that on any of the minor rises in the flat surrounding area in many years of riding round there.