TexasCHLforum.com

The only time I ever ran into a metal detector was at a festival on the town square in Seguin. Because of a possibly-apparently-gang-related confrontation that resulted in a stabbing death a few days prior, the city announced there would be controlled access points to the festival and everyone would be screened for weapons.

Since this was on the public square, government-owned property right behind the court house, me and my concealed handgun and my concealed handgun license all went to the festival. There was a city cop at the entrance with a metal detection wand in his hand. I walked up and told him I had a CHL. He said "Congratulations!", shook my hand, and waved me in without further ado.

That was my experience. YMMV.