Just one more thing to add to his pending auto biography.

This time it’s a DUI, and even more amazing, he was able to keep it quiet until today when TMZ got their sneaky little paws on his police report.

Weiland failed the sobriety test and refused a breathalizer, which pretty much automatically makes you GUILTY.  I get it, you’re a rockstar…you booze it up…fine but don’t drive!!!

Check out his sexy mugshot