GOTCHA! JEN's lover doll JUSTIN THEROUX caught in the act!

Jennifer Aniston’s fiance Justin Theroux may have plenty of dough, but The ENQUIRER caught him pulling off a sleazy trick to park in New York City with no fear of getting a costly ticket.

The 42-year-old actor/ screenwriter has apparently rigged up a Velcro-attached license plate for his pricey Ducati motorcycle that he can take with him so cops can’t give him a parking ticket.

NYPD authorities say that Justin’s ruse allows him to avoid tickets, but they really can’t do anything about it. Without a plate, the bike is considered abandoned and can’t be towed by the cops.

And while the Department of Sanitation can haul it away if it’s on public property, that can take up to three business days.

The “Wanderlust” star, who’s been engaged to Aniston, 44, since last August, drove off scot-free after putting the plate back on the bike.

Meanwhile, a car parked in the same area DID get a ticket, which typically costs more than $100.

“Justin has been living in New York City for more than 15 years,” a source noted. “He clearly knows his way around the parking laws.”