Giving a bribe

Offering or accepting bribe is indeed forbidden in Islam. However there are times when one is really helpless and cannot gain one's right or avoid being subject to to injustice except through bribery. This question is on behalf of my friend. "I am running an export oriented industry for which water is most essential. My water flow meter's visibility has become quite dull for which I approached the concerned authorities to allow permission to me for purchase of new meter as I fear that the current meter reading is also not clearly visible. I have been asked to send this meter for testing which I have done but the officials demand bribe for giving the permission to me to purchase new water flow meter which is my right. Delays will put me to great losses in my business. My question is that under the above circumstances if I fulfil their unjust demands would I be committing the major sin and face Allah's Wrath?"