Miley hit up a fire station in Bev Hills that offers curbside voting service. Check out the vid ... a firefighter leads her into the station's driveway where Miley hands her ballot.
Only in Hollywood ... cause even Hillary Clinton and Donald Trump had to walk inside a polling place, walk inside and cast their ballots.
Turns out ... there's curbside voting at polling places in L.A. County, but it's only available to a select few.
And in case you're wondering ... Miley's with her.