dynamic client vpn endpoint address? route53?

So right now i have a few sites that can host client vpns and i try and hand out the address according people on the west coast i give my sf firewall and people in the east i give my ny firewall and so on and so.

what I want to do is give all users the same address vpn.network.com and then have users connect to that and that dynamically send them to east or west or uk or where ever is there nearest vpn-endpoint or if one is down route to the next best?

iv seen some stuff in route 53 that looks like it sorta can do that but i would have to create a record for every state to send half to east and half to west.

just looking for the best/least painful way to set this up.

Thanks