You visit the town clinic to get yourself patched up. Treatment costs $100, but will be offered free if you really don't have that much cash. No "barter" will be required. You are back to 3 hit points.

This takes an hour. However, if the garage is working on your car, that can be done while you're at the clinic - so an hour of the repair work can "overlap" your medical treatment time. Return to 257 and choose again.