* * * about four hours later i arrivedexhausted , at the university dr exit off the 281 interstate , where staunch anti-immigrant supporters were draped in red , white , and blue , walking along the sidewalks waving dixie , texan , and american flags , while motorists inside oversized vehicles with conservative propaganda bumper-stickers honked their horns in furious repetition shouting out racist nationalist slogans while belting around the city .