Just to pop back in here, I'm selling my Venza to a local dealer tomorrow for a better price then Tesla would give me. Also, I emailed the State about the rebate so helpfully pointed out by mjwojtukiewicz. Their response (which I'm delighted with), was:
Hi Richard,
The drive clean rebate is a point-of-sale rebate. This means you will receive it upon purchase of the vehicle. Tesla usually removes our rebate from the down payment, and it should be itemized on the motor vehicle purchase agreement. Just be sure that you are purchasing a brand-new vehicle from a New York dealership, and that you yourself are a New York Resident.
If you do not see the rebate on your motor vehicle purchase agreement, feel free to contact us again.
Kind Regards,
Drive Clean Rebate Program Staff
Center for Sustainable Energy®