Tesla to Make Their Charging Stations Available

I just read were Tesla has agreed to make 7,500 of their charging stations in the US available to non-Tesla EV's. Of that 3,500 are to be their fast 250kw charging stations with the rest the Level 2 destination chargers. At least this is a start and hopefully more of their stations will be available as well.
Does anybody have insight as to which stations will make available first? The administration's priority is on stations along the interstate highway system, but I have found the greatest need to be on the secondary U.S. Hwy routes.