The Motorola Razr V3 is a classic phone - I still think about how revolutionary that flip design was back in the day. Unfortunately, you're well past any standard return window. Verizon's return policy is typically 14 days from purchase, so even if you bought this phone relatively recently, a device that's been sitting unused for years wouldn't qualify. That said, it's worth calling Verizon customer service to ask about your specific account, since they sometimes have goodwill exceptions or old device trade-in programs, though honestly the trade-in value on a V3 would be basically nothing at this point.
As for extended warranty or replacement programs, most carriers stopped covering phones that old. If you originally purchased a device protection plan, those usually expire after a couple of years anyway. Your best bet is to contact Verizon directly - explain the situation to them and ask if there's anything they can do, but manage your expectations. They might offer you a discount on a new phone as a loyalty gesture, but that's about it.
If the screen issue is minor and you're just keeping it for nostalgia, you could try a local phone repair shop instead. Some places still work on older devices, especially a phone as iconic as the Razr. Otherwise, it might be time to let this one go and grab something current. On the bright side, at least modern phones have better specs for playing along with guitar rigs if you ever need to record some ideas - the audio quality on the V3 was, well, let's just say it was 2004.