I haven't seen one, but then again there's a lot hand written fonts a have yet to see.

Be neat-o if it came with Basquiat alt chars...

That is his mother Julia's handwriting, not Andy Warhol's.
It has been done as FF Pepe.

That might have been the inspiration for FF Pepe. https://www.fontfont.com/fonts/pepe

Craig—see above ;^)

Yeah, you posted in the time it took me to wrack my brain and fetch the link!

Thank you. I haven't been logged for a long time so I've missed these entries. I'll look for FF Pepe.

Is there a font in this style, which is free?

Offhand I know of none (never looked), but you could try scanning through the lists on Dafont.