Passat (B6) :: 2006 VW 2.0T Won't Start

My car died in the middle of the road a week or so ago, and when we brought it home, it wasn't getting any fire. We put new cam sensor, new crank sensor, and bought a replacement ECU. The ECU was swapped out, and the car still wouldn't fire. The ECU came with another key FOB. We tried to start the car with the new FOB key. The FOB key got stuck in the ignition, and we had to wiggle the gear shifter around to get the key out. We put the old key FOB back in the ignition, now it is trying to get stuck occasionally.

We put the old ECU back in the car since the new one didn't fix the problem. Ended up replacing all four coil packs. Using the old FOB key, the car will turn over and gets fire, but will not start. Each valve was checked, and 120 PSI readings were obtained. All fuses are getting correct voltage (info on correct readings was obtained from VW tech in Louisiana who did troubleshooting over phone). Next problem...parking brake was engaged, during all this, while checking all fuses and grounding...now it is stuck and can't be disengaged unless car is running.

Had the car towed to the local dealer, and they say they checked it out and the car needs $4700 dollars worth of parts and labor. They claim it has a bent valve, and bad fuel pressure regulator. They didn't use any diagnostic tool though to read codes. They stood outside with the hood up. The mechanics could not start the motor, and they said they wouldn't be able to read any codes cause the original radio is not in the car. I think I am gonna call their bluff. Is it possible that the immobilizer could have been activated, as a result of us using two different key FOBs, thus prevent the car from starting? I have read that the immobilizer can shut off the fuel supply and prevent the car from starting.