As he should have done! It's the job of any decent congressman to favor fiscal restraint of all forms including measures to block massive pork barrel handouts to left wing social reconstructionists and their contractor buddies with vested interests in government handouts. He should do that whether it is in his district or not, especially with Metrorail - the single most bloated, convoluted, poorly designed contractor welfare handout in the state of Texas today.
Take a case example: There's a company named Siemens that builds the train cars for Metro and has the exclusive prototype on that car, virtually guaranteeing any future business from Metro is theirs. Siemens dumped over $50,000 into the Metrorail political fund to push through a multi-billion dollar expansion of the thing. The result? As soon as they start building phase II Siemens gets more contracts. But that should be expected of them - they've been whoring themselves out to corrupt governments as a "transportation infrastructure" contractor since Hitler hired them to build rail parts for Auschwitz in the 1930's. Some things never change.