Bumpity bump!

So, my sis, the kids and I headed to Newport today for beach trip #3. We were *almost* there, and I mean literally ALMOST at the end of the 55 freeway, comPLETEly stopped in traffic and BOOM!! We got rear-ended!!!!!!!! What the??!??!?!? Scared the HECK outta me!!! I motion to the dude to pull over and we both get out. I swear, I was expecting the whole back end to be pushed in, but there was no visible damage, surprisingly! He was driving a Suburban and all that you could see on his car was the license plate had been dented in where it hit our tow hitch thingy. This guy was so very apologetic and instantly handed over his driver's license and insurance card. He just kept pleading with me not to call the cops because he'd get a ticket - DUH! I wrote down all his info and we continued on to the beach. Matt called our insurance company and took care of everything as soon as we got home.

Now I have another dilemma. We were in a minor accident back in March and we had all three carseats replaced because according to Graco's website (which our previous carseats were), if one of their seats is in ANY accident, it should be replaced. Our insurance company paid for the three replacement carseats and we purchased Sunshine Radian 65s for all three kids. I LOVE their carseats!! But now that we've been in another accident, do I replace these carseats too?? I mean, they are made of steel, seriously! Their website also says to discontinue use of the carseat if it has been involved in an accident. I don't want to be nit picky, but I also don't want to compromise my children's safety in any way. What to do, what to do??? Hmmm....