The Tarkov Extortioner: Quest help

I'm busy right now! Although... Wait. There's an urgent matter. An hour ago, there was a shooting in the garages across the river. Right where my courier was sent. To hell with him, he was a complete idiot anyway. But he had a special key with him. A key of formidable complexity, I might add, which opens a kind of door that could be absolutely anywhere, you see? That clown was delivering something very valuable to me. He hid it somewhere, the bastard, locked it up with that damn key, then came back to raise the price. What a bitch! I lined up the cash, FYI, but that jerk, without telling me where it was, went to retrieve the package himself. I'm pretty sure he got shot there. Find the key, then find the package, even if you have to check every door from downtown to the port.

• Find the precious merchandise hidden in Customs
  • (Optional) Find the courier's body
  • (Optional) Find the location where the courier has hidden the item
• Deliver it to Skier

• + 3,200 EXP
• 500 Dollars
  • 525 Dollars with Intelligence Center Level 1
  • 575 Dollars with Intelligence Center Level 2
• Reputation with Skier +0.04
• 1 × Molot Arms VPO-209 .366 TKM rifle
• 3 × 7.62 x 39 mm 30-shot magazine for AK (year 55 or later)
• 1 x .366 TKM EKO ammunition box (20 rounds)
• 1 × BNTI Zhuk bulletproof vest (press)
• Unlock the purchase of the Remington Model 870 12-gauge shotgun at Skier NdL 1