Nothing in this tariff shall be construed as making it binding upon this carrier to accept freight from or make delivery to locations to which it is impracticable to operate vehicles, inclusive of performing pickup or delivery services, because of conditions of alleys or streets, because of riots or strikes, conditions typically referred to as Acts of God or Force Majeure events, inclusive of Force Majeure events as defined in that item of this tariff, local, state, or federal regulations restricting or prohibiting certain vehicle types, commodities, services, or if perceived to constitute a risk to environment, vehicle, cargo, vehicle operators, the general public, or pose a security risk. Further, at its sole discretion, Carrier reserves the right to refuse or reject requests for service, or to return accepted shipments, if it is known or perceived that any of the foregoing may exist or occur. Any applicable service guarantees are rendered null and void in the event any of the foregoing are experienced.