To be honest, a bow - of any type - is completely okay to have. A standard arrow (hunting or target) is completely okay to have. They are, after all, used for hunting. Crossbows may be a little different, but even the light ones are 'yeah, whatever, move along, citizen'. Going about with two, ten, or five thousand arrows isn't going to mean to The Man that you're out to kill half the population of Seattle; it just means that you have a hell of a devil rat problem. So a high-tech quiver isn't going to really make them blink. It's the owning of different arrow-heads that's going to get your ass tossed in jail.
So I'd personally remove any restriction on the quiver. I WOULD have an indication, though, that cops automatically take a thorough look-see to check out whether or not you have anything you shouldn't stored inside.
And when it comes to arrows? If you can get a telescoping staff which can withstand a troll-force blunt-end punch, and nothing but a glitch / critical glitch says that it wouldn't, I don't see why you can't have telescoping arrows. Of course, you'd also be multiplying your arrow rating by 7 or more instead of 2 - which means that just for the shaft, you're getting into the Pretty Damn Expensive range.