I bought mine (not a Genesis, but another Weber) from an Ace. A fairly pleasant experience, although they couldn't figure out the stainless steel option I wanted.

Gotta say, I would have been so livid, although I wouldn't have thought of calling the cops. I'm sorry you had such a crappy experience. It seems to be standard practice for the bigger stores to believe their customers are thieves first these days.

I am the Doctor, and THIS... is my SPOON!