Can it be done?

Several threads already exist about this. eg:
Nudge Blocker
Blocking nudges, buzzes or zumbidos [SOLVED]
[Request] Block on x nudges in x seconds
etc

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For a script, see CookieRevised's reply to [Request] Block on x nudges in x seconds

and change the internal variables of that script to:

jscript code:

---

var floodCount = 4;     // max amount of nudges allowed in the time period
var floodTime = 60000;  // period for floodchecking, in milliseconds
var blockTime = -1;     // period the contact is being blocked, in milliseconds
                        // (-1 = indefinitely time, aka: contacts will not be unblocked automatically)
var blockMessage = true // true = contact will be notified that he is being blocked
                        // false = contact will not be notified

---