I ran a Euro plate for a while since I hated the look of the standard plate and didn't want to get the bumper refinished right away (wait for something to happen to warrant a fix). Cops never gave me a hard time for it here in Cali.
Having lived in NYC for 30+ yrs on the other hand... it seems like anyone with a badge can write you up for anything. Meter maids will leave no/invalid plate tickets, expired registration, etc... on your window every day.
Just get one of the many tow hook brackets that are available and run the standard plate.
EB M235i (
E92 M3 (