Lobleedsorange, if you have cowgirl boots, I bet you can make it work, especially in Texas.
I bet you can make Converse and cowgirl boots work through most rounds, but during pref, as someone else suggested, can you swap some dressy flats for right before you enter the door? The only tricky thing would be pref, but if there are some foot-friendly flats, that would be golden.
Depending on your school, you'll only go to two or three pref parties.