Residence Certificate Question if received from Immigration Office In Bangkok

I plan to purchase a used car from a friend next week. They are Thai and told me I will only need my rental contract and passport copies when we go to transfer ownership at the Government Office. I have read here that an actual Certificate of Residence is needed to do this so I question their statement. I really do not want to go to the US embassy and pay the $50 dollars again like I did when I got my drivers license. If I go to one of the temporary Immigration offices, since Division 1 office is closed due to protesters, will I receive the certificate of residence the same day? I was thinking I had read where it takes quite a while to get. The tentative date to transfer ownership of the vehicle is next Friday February 28th. If anyone has done the process recently and can give me some information I would greatly appreciate it. I live in Bangkok and although I am not sure where exactly the vehicle transfer office is, the vehicle owner told me it is somewhere near Chatuchak Weekend Market. I did search the Motor Forum but didn't come up with much information.