If you find yourself in a dicey situation some night with cops around, resist the temptation to explain things. In fact speak as little as possible ... short answers to direct questions only.
Never ever allow a cop into your home ... ever. Speak through a closed door when possible. Don't worry, you won't hurt his feelings.
Traffic ... Driving on an expired driver license is a fix-it ticket, driving on a suspended license is a CRIME. Try to remember the difference.
Parking tickets cite cars, not people ... they're "in rem" actions. There will never be a warrant issued for too many parking tickets, and your license will never lose points or be suspended. Car might get towed or cost hundreds to re-register, but you'll be fine.