I bumped into a couple of punters coming in when I was on my way out over the years I usually get to places when their opening. One of them looked at the ground and made no eye contact. Another got chatty with me he was actually the girls minder but was friendly. Its strange what happened in your case maybe he was the girls pimp? You always have to be prepared for one, your being filmed in those shops, and two your being watched by the girls security. Sometimes its better to have a regular you just need to message and meet somewhere else like hotel.