Make him first sign an agreement to pay your interior cleaning bill.

Yo, that's my homie. Crawl on my expensive leather seats and i'll rush you to the hospital dawg.

Look for an old cloth or tarp, then speed off with him -- in the trunk of course.

Uhm, you'll feel better if you ride on the roof. Yeah, err, you need fresh air.

Fuck that, what's the # for the ambulance, yo?

Other.

What would you do?