Chad Muska was cuffed and stuffed into an LAPD cruiser last night after allegedly vandalizing two buildings on Hollywood Boulevard.

Muska was first detained by security at the Roosevelt Hotel around 2AM. Law enforcement sources tell us Muska was seen spray painting his name on a nearby Coffee Bean.

The security guards called LAPD officers … who arrested and booked Muska for felony vandalism.

We got shots of Muska’s alleged handiwork at the coffee shop — “Muska”‘ — and also at Hollywood’s El Capitan Theater … “Muska kills.”

Muska’s being held on $20,000 bail.