They could ask you to sign at the 150 miles but stating that you can not work in the industry is not going to hold up legally as that is an unfair and ridiculous clause. Should you not sign it, they could fire you, but then you may file suit for wrongful termination due to the lack of enforceability of an agreement with such steep terms. These agreements are suppose to protect companies from having a former employee share trade secrets or taking clients with them when they leave, but trying to place a restriction stating that you can not work in the entire industry is ridiculous and I do not foresee any judge holding that clause to be enforceable. You may want to read more
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