TL;DR: Went for an "easy" ride, crashed due to someone else's negligence, didn't get info at the scene and wish I had. Don't think I'm hurt enough to warrant a hospital visit and bike only has minor damage. Lesson learned, always get info at the scene.
The Long Story: I set out this morning to put in an easy (ie flat) 50 miles before the end of the month (damn Strava badges!). Since it was totally gross out in Seattle today, I figured the MUP would be sparse at best, so I didn't bother hooking up my normal commute cameras.
For the most part I was right, the trail was almost empty, but about 7mi in I got reminded that it only takes on person being irresponsible to ruin my day.
I'm moving at a completely reasonable 15-16mph pace and there is a lady with her dog by her side standing next to the trail. As I approach, the dog who has a ball in his mouth steps onto the trail and drops the ball. The ball starts to roll across the trail right into my path so I slow down as to not hit the ball. The lady is making hand motions as if she's tightening a leash since she's looked up and made eye contact with me. I then notice that this dog actually has no leash (I'm about 15' away from the ball now) and of course the dog runs right out on front of me to get the ball.
I grab two hands full of brakes but it's not enough and I hit the dog right in the ribs

and I promptly go over the bars. The lady freaks out as I do my best to minimize the impact by shoulder rolling onto the asphalt. I get up and promptly tell her "check on your dog" because I'm worried he's hurt.

. To her credit, she ran to me first and not her dog. I estimate I hit the dog at between 8-10mph.
Luckily the dog seems fine, tail wagging and no limp or other indications of pain. I'm also feeling fine, bit of course anyone who has crashed knows that feeling fine 20 seconds after hitting the deck and *being* fine an hour later are two very different things.
Once she realizes we're both fine, she starts to walk away FAST. She even says something like "thanks you for being so nice about this" as she leaves me to evaluate the damage to my bike. My bike seems fine but my rear camera mount is broken off and my bar tape on my left side is a bit shredded. Wheels are true, drive train works since the bike landed on the non-drive side. Garmin and lights are all still working.
As I gather up the broken plastic of my camera mount she's about 50 yards away now, heading towards the road through the grass. I spin my wheels, get my chain in order (it had dropped from middle to small front ring) and saddle up to test it out.
I rode off still a bit in shock about things but my bike seems fine and I seem fine so I soon get back into my flow but decide to cut my planned 50mi ride in half.
As I'm riding later my foot starts to hurt (think I tweaked it as I unclipped while going over the bars) and I start to question myself about why I didn't get her information. She was clearly at fault and knowing what I know about injuries appearing well after a crash, I'm frustrated that I made such a rookie mistake.
Now I'm home and I have a small bruise on the top of my foot and a small bruise on my hip. I think I'll be fine but I'm still bummed that I didn't get her info.
The Lesson: No matter how uneventful you expect a ride to be, always be prepared for something bad happening and be ready to do the right things at the time rather than being left to second guess it all after it's all over.