The causeway and the twin spans are line items, not just bridges
Geographic targeting in this market is a drive time decision that shows up directly in your cost per job.
A single radius drawn around your yard will buy clicks in three parishes with wildly different economics. A West Bank inquiry, an Uptown inquiry and a Covington inquiry all cost roughly the same to acquire and cost you very different amounts to serve.
Build the account by parish. Orleans, Jefferson and St. Tammany each get their own campaign, their own budget and their own bid posture. If you rarely cross the lake, do not bid as though you do. If Northshore work is your best margin, bid up there and let the close rate justify it.
Location targeting should be set to presence rather than interest, or you will pay for someone in another state reading about pools in New Orleans. Check that setting first on any account you inherit.
Then read the geographic report every month instead of the campaign averages. Averages hide the fact that one parish is carrying the account and another is quietly eating it.