How To Go About Custom Aero?

I was planning to make some trips out and turn wrenches with him and basically learn fromnhim, but then I got wrecked by the men in blue 5 minutes away from home. I am hoping to get up there after I get this handled. I kind of got to lay low ATM and not cross paths with this persistent officer that camps out for me, for reasons unknown to me. It sucks.