said by sharpy merc:
so you can arrest americans who behave like an unreasonable dickheads
Apparently so. Or at least for doing X
after being told not to do X
when it turns out X
is an arrestable offence.
Now, I grant you a better solution would have been for the cop to say "have a nice day, I've done all I'm going to do, goodbye" but I still think the consequences of dickheadery were self-inflicted.