The DMV uses taxable value not purchase price to determine taxes and title charges. You can put in $1 on the title, but they wil use taxable value.

I have my dealer's license... I do this every day

To the person who yelled at the DMV clerk, next year there will probably be a correction in the value and the tags and taxes are gonna go waaaay up.
It's hard to yell at the post card in the mail to intimidate it.