Not sure why you are asking, but as you know now the VIN won't identify 1LE option.
The fastest way to Identify a 1LE is pop the hood. The steering shaft is white on the 1LE the ZL1 and Z28.
So if some one takes a stock ss and wraps the hood, you can tell its fake.
I know most of you are going to run out and check your car now.