My mail box Is on the street I place a DO NOT DRIVE PAST THIS SIGN 94FT from the street in my driveway.A mail truck driver ignored my sign

Interesting legal issue: can the USPS mail delivery people ignore a "no trespassing" sign? there is a presumption that people want their mail delivered and, if they don't they can ask the USPS to hold their mail. more importantly, unless you can show the USPS caused ACTUAL damage to your property, you have no damages. USPS will argue that putting your packages close to the residence is a benefit as there is a lesser chance a package gets pilfered. could you sue for injunctive relief? yes, but again, since you cannot claim damages, no attorney, including this one, will take the case unless they are paid on an hourly basis, estimated fees could be $5-10,000 before the case is over.    Good luck.