Did you do anything douchey prior to the keying? Driving like an asshat or double parking? Not that it makes it ok, just don't be a target! If you were driving like an angel and parked nicely, then WTF and people are just plain losers. I am in the process of getting two key marks painted because they are too deep
'09 LCI 335i E90 in Oyster over BSM, 6 spd, Sport, Navigation, Individual Audiophile, Executive, Active Steering, JB4, BMS DCI, Euro Tails/Fog Light Switch, various painted and other OEM + mods, 19" M5 reps summer, 18" M6 GC reps winter.