How to best support neighbors?

We moved to a new neighborhood and last night we noticed one of our elderly neighbors being carried out on a stretcher/taken to the hospital. I was abt to send my husband out to ask if her husband needed support, but he left after the ambulance before we could get outside. How can we offer support? Is it weird for us to reference the event and write down our phone numbers? Should we leave some gifts cards in there for her husband for meals on the go? They are kind people and we truly want them to know they can call us at any time of the day or night to help them.