When you become King of Poland, please do us a favour: put a 'P' on the No Parking sign, and make them the same shape, okay? Your humble servants will thank you.
Parking in Kraków must be paid Mon-Sat 08:00-20:00, and it is not cheap (6zł/hr in most of the city centre). Buy a parking pass from the ticket machine (most of which only take coins, of course; ahem, King!) and place it on the driver’s side of your dashboard.
A better option than circling around Kraków's narrow streets searching for a parking space amongst incoherent signage is to just ditching your whip in one of the city's centrally-located public parking lots, which we list below.