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 (Sold)
E92 M3 (