I was pulled up by a policeman who considered this suspicious behaviour. Apparently "normal" people get back in their car and drive to the parking lot of the store on the other side of the road.
I run into this all the time. A preference for walking is highly unusual in the US.
On a related topic, you should have seen my parents faces when I told them I was excited about moving closer to town because it would put me within cycling distance of a lot of places I frequent. They thought I'd lost my mind when they realized I considered a store just under mile away to be within "cycling distance". And I thought they were going to have me committed when I told them that it was actually within walking distance if I wasn't in a hurry.