"To transport these boxes to Sacramento, we will package them on pallets and deliver them using a Teamsters trucking firm," wrote Mark Whitworth, the city's administrator.
Whitworth requested a $200,000 up-front payment as a demonstration of good faith.
"Without question these requests will require a large staff several thousands of hours to review," Whitworth wrote. "These requests reiterate your desire to bring the City to a grinding halt as part of your overall effort to kill it."
Perez's spokeswoman, Shannon Murphy, told the Sacramento Bee that Vernon's response is "ridiculous."
The Assembly voted last week to disincorporate Vernon. The bill, AB 46, now moves to the Senate.