Currently, you can only rob fuel stations and I noticed that there was a supermarket in Kavala square. So for people who rob gas stations for the RP or even the people who do it to get in a gunfight surely it would switch things up if they could rob a supermarket and it would then open up multiple avenues of RP and even the CQC gunfights that could happen within it. I understand it could create lag so why not have 3 main supermarkets on the map one close (not in) to each main city (Kavala, Athira, Agios). Within the stores you could have access to buy items in the virtual market and certain general store items like toolkits, maps, GPS etc (more selection than at fuel stations). Maybe the supermarkets could be a higher priority to the police than gas stations and have a higher cash reward if you succeed.
An idea I had with the robbing part would be having the back room door be locked and you have to bolt cut through it then you rob it.
Let me know what you think.