Visitors parking permits - quickest way to get those please (Florence Rd) ?

I need 2 whole day permits and some shorter ones, I do not drive so no idea about those, apologies is question seems silly.

Where can I get those - fast? Need the 2 whole day ones for this weekend.

Can not order online as they will not arrive on time. I work so can not go anywhere to queue up for ages (bad experience of few hours in Wood Green Library some time ago).

Or maybe someone got 2 whole day ones that I could buy/borrow? Need them for Florence Rd, no idea what parking zone is it...

Many thanks