I don't even own a lock. If I can't take mine in with me - I don't go there. I know that isn't the answer to your question but it's my only way home so I can't afford the even remotest possibility of having it stolen. I have yet to have anyone tell me I Can't take it in somewhere and it's actually been a conversation piece on more than one occasion while I was shopping. I did have 1 friend told that she couldn't bring her bike into Wal-Mart coz they don't have any way of telling if it's hers or if she bought it there
so she and I went back there together on our bikes and waltzed right in like we belonged. Guess it was either something that Wal-Mart greeter had made up...or the 2 of us together with our bikes were very intimidating (I thinketh not lol).
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!"