Even though the Mayor of Inglis, Florida [1] banned Satan [2] from entering the town, I seriously have doubts as to the power the Mayor has over such supernatual beings. Sure, you might have the major ingresses covered by such proclamations (according to legend, vampires cannot enter one's home unless explicitely invited) but does that cover city limits in their entirety? What about areas not covered by roads?
And given that Satan supposedly lives below, shouldn't she have buried the proclamations? Okay, so maybe it's a metaphorical below so that might not work. But still, the whole notion is rather silly. It's the Mayor for crying out loud—here in the States, we have this bit in the Constitution separating Church and State.
Now, had the head of the local church done that …
[1] http://www.travelhero.com/search.cfm/country/US/state/FL/city/INGLIS/hotels/reservations/
[2] http://www.stpetersburgtimes.com/2002/01/29/TampaBay/Inglis__Mayor_acted_a.shtml