Tesla Energy sales will likely rely more on phone support, coupled with the site visit.
We looked into purchasing panels and Powerwalls over the last few weeks. The nearest store is a 30 minute drive, and instead of making the drive, just called Tesla's phone sales line - and then exchanged several e-mails before the site visit was scheduled.
Tesla tried doing onsite sales at Home Depot, and didn't get much traffic. Wouldn't be surprised if the store experience was similar.
If Tesla isn't spending $ on the stores any more - wouldn't be surprised for them to make some investments in their online presence, such as integrating chat or teleconferencing with their website, providing closer to an "in person" sales experience, without requiring the trip to the store.
The bigger impact of the lost stores will be on test drives. While we are strong Tesla supporters, we took a test drive before purchasing all 3 of our Tesla vehicles - and don't believe the 7 day/1000 mile return policy will eliminate the need for test drives.