So sorry to read this
@Cathryn
The most important thing is that you're ok.
@classic33 has an excellent suggestion - to ask in the garage for CCTV - better to be safe than sorry.
I'm presuming nothing was reported to the Police? It may not be a bad idea to do so - just in case.
I think it's a really good idea to get the bike checked out. Ideally the driver should pay for it!
And yourself!
Good for you that you continued on, and presumably home later. However, there's a difference between "having to" and "wanting to". It wouldn't be unusual for a type of delayed shock to kick in that could affect your enjoyment. It may also have an impact on the other cyclists in your family, especially the 67 miler.
When I first started driving I read somewhere that it was a good idea to have a written list of all the steps to take in the event of an accident because an accident can scramble our brains. Not a bad idea to have a list scribbled down in a puncture repair kit or on a phone. (Not in any way meant as a criticism but a suggestion for anyone, reminding myself that I lost my copy on my phone).
Be kind to yourself, take it easy and the best of luck