I'm so sorry to hear about your unfortunate experience Mel - the only thing I would add is: I Don't lock my bike up. Even if they do provide racks for them. My bike goes everywhere I go - or we don't go there. I have yet to have anyone get upset with me for bringing my bike in - most store employees are fascinated by it and stop to talk to me about my ride, how far etc etc. I just don't feel safe leaving my bike unattended not to mention the situation you presented, where you came out and had to chase away boys and then stop and unlock the bike etc etc creating time delays that could work against you - which it sounds like they did. sending virtual hugs your way my friend and feeling sorrow that the world has to be like that sometimes!
Life should NOT be a journey to the grave with the intention of arriving safely in an attractive and well preserved body, but rather to skid in sideways, champagne in one hand, strawberries in the other, body thoroughly used up, totally worn out and screaming: "Yeah Baby! What a Ride!"