I'm not in Texas, but I've looked up the statute for you:
Here's the FAQ from the TEA:
http://ritter.tea.state.tx.us/curriculum/early/kfaq.pdf
They have a really weirdly worded rule:
"... Children who are five years of age on or before September 1st are not required to attend Kindergarten. However, on enrollment in Kindergarten, a child shall attend school. Compulsory school attendance begins at age six. ..."
Now for the real law:
http://tlo2.tlc.state.tx.us/statutes/docs/ED/content/htm/ed.002.00.000025.00.htm
"Sec. 25.085. COMPULSORY SCHOOL ATTENDANCE. (a) A child who is required to attend school under this section shall attend school each school day for the entire period the program of instruction is provided.(b) Unless specifically exempted by Section 25.086, a child who is at least six years of age, or who is younger than six years of age and has previously been enrolled in first grade, and who has not yet reached the child's 18th birthday shall attend school.
(c) On enrollment in prekindergarten or kindergarten, a child shall attend school.
You have to go about halfway down the page to reach the section on compulsory attendance, but from Section 25.093, I get the following:
"PARENT CONTRIBUTING TO NONATTENDANCE. (a) If a warning is issued as required by Section 25.095(a), the parent with criminal negligence
fails to require the child to attend school as required by law, and the child has absences for the amount of time specified under Section 25.094, the parent commits an offense."
Section 25.094 states that:
"FAILURE TO ATTEND SCHOOL. (a) An individual commits an offense if the individual: 1] is required to attend school under Section 25.085; and 2] fails to attend school on 10 or more days or parts of days within a six-month period in the same school year or on three or more days or parts of days within a four-week period."
Since Kindergarten attendance is not fully compulsory, I just do not see how any court would realistically agree to prosecute for short-term Kindie non-attendance, and especially not if the period that the child was out was no more than 9 weekdays. With public budget shortfalls occurring all over the place, I don't see any local government being foolish enough to spend the tax dollars in a situation concerning a pre-declared family vacation. (I'd say it is likely that there is a greater chance that pigs will learn to fly.)
All bark and very little bite, is my guess.