The upshot is, I was very lucky. He cleaned me up, and gave me instructions on what to do (which I will try to follow). He told me to stay home for the rest of the week, but unless I have a setback I'll go in to work on Friday. They're very short and it will give me brownie points with my boss.
I expect to look like a raccoon by then, the bruising is spreading.
Sleeping should be easier tonight, when I can sleep on my left side as well as my right. I may take a nap when they finish running the leaf blowers.
Tomorrow, if the bleeding is completely stopped, I'll go see the chiropractor. I'm too tired to go today. Maybe go to Lenscrafters, too.
I have to cancel my weekend plans, though. :-(