Hi I live in TX. We have NO places that are allowed to refuse admittance. The post office as well. Whether it be SDIT or not. Look up Texas Statute title 8 chapter 21, section 121.005(a)
go to http://www.capitol.state.tx.us/statu....000121.00.htm

Also check out titleIII section 4.2300 of the ADA.

Refusual of admitance is a violation of your civil rights as provided for they americans with disabilities.
ADA info line: 800-514-0301

Hope this helps.
Deb