I carelessly left my car unlocked, and it was searched by trespassers in the night. They only took the registration and insurance card (Ohio, United States). This seems strange to me, as these things aren't really useful to anyone, except possible for the personal info they contain, although I don't think it's enough info to take over online accounts or to impersonate me in person. Strangely, they didn't take low stakes items like change, or high value items like a dash cam and expensive sunglasses, or even the actual plates, which would have been useful along with the registration.
What should I be worried about as a result of this info leak?