I think ethics people weighed in and cops were told that they had to pay for stuff. But they still get discounts at a lot of places, discounts offered to all first responders for example. In my area, after midnight if you go to our local convenience store chain (Wawa) you will find a cope there getting coffee about 50% of the time. Nobody robs the wawas.
Telling cops to stay away seems unwise.
Lets just say i know a lot of businesses that still offer freebies to police in the panhandle of fla. System still works well for all involved.