Wow. Just wow. The whole idea of being given "access" to Q is just a little absurd. It's really this simple: Bond is sent to Q to be outfitted with a "tracking device". Why? Because Mallory knows Bond is up to something and that it's his head, not Bond's that is on the line. Q gives him the...
I don't LOVE Spectre, but I like it an awful lot. Mind you, I'm also rather partial to Quantum of Solace, and believe it should be watched as a double feature with Casino Royale as often as possible.