CAUTION: TN w/ TXT in the HSE

That's Caution: Teen w/ Texting in the House for the rest of us non- texters. My oldest DD just turned 13. We caved and got her a cell phone. Havent seen her since. She actually Texted me TWICE when I was 6 minutes late picking her up from a sleepover. "MOM - u need 2 p/u me NOW." Yes, twice. She has yet to learn it is illegal and darn near impossible (for us parents anyway) to text while driving. Somehow I need to find a way to work this to my advantage. Tomorrow I think I'll txt her: "DD - u need 2 p/u ur rm NOW." and repeat every 3 minutes til its done?