Political robo-calls
TV commercials every 3 minutes
Empowered a**hole authority figures
Miami heat (both the temperature and the team)
Busy-body code enforcers
Soccer mom drivers with huge SUVs sipping on their Starbucks while talking on the cell phone
15-mph school zones when there are no kids
Big scary people (US bums and riffraff are a lot scarier looking, even if here that 16 year old scrawny kid may be more likely to actually pull out a weapon and rob you.)
The PC / feminist crowd (some of the commercials here just make me laugh.. "if this were shown in the US!")
The very early work day
Self serve gas stations and the running back and forth if paying in cash
Certain etiquette customs that always seemed more like gift grabs than sincere appreciation (wedding thank you cards, gifts/registries/cards, baby showers, bridal showers, etc etc)