If you're leasing the car why bother? The lease includes the expectation of wear on the bumpers, so who cares - you're effectively flushing the money down the toilet.
If you were purchasing the car I'd say go for it since you'd appreciate it 5 years down the road.
If you're still sold on it, I'd recommend Detailing Dynamics in Mineola, they do great work but again it's pricey.
Current: '15 M235i Vert
Previous: '13 335i, '08 TL-S, '00 Corvette