Open Carry Rally this Saturday in Texas [corrected]

Updated: Whoops. Turns out I didn’t check the date on the DMN article — the event was this last Saturday and has already occurred. Mea culpa. Additionally, it looks like the group didn’t have permission from Home Depot and may have violated Home Depot’s “no solicitation” policy, which might end up getting open carry banned at Home Depot. Way to go, guys.
In the army we had a name for people who screwed over their buddies: “blue falcon“. It’s fair to say that applies to these guys.
Original post continues below:
Heads up to any readers in Texas: according to the Dallas Morning News, there’ll be an open carry rally in North Richland Hills this Saturday:

Starting at 11:30 a.m. supporters will fill the back of the parking lot at the Home Depot on Precinct Line Road to listen to speakers, have an open-carry education session and hold a raffle. Prizes include revolvers, an AR 15 rifle, over 1,500 rounds of ammunition and Rangers tickets, according to the group?s Facebook page.
Rally organizer Kory Watkins, 30, wants to make it clear that Saturday?s event is not a protest.
?Protesters are angry; and we are not angry people. If you come up to us, you will see we are smiling and friendly,? he said. ?We are demonstrating, demonstrating our rights and demonstrating how the law lets you carry a long gun, but you can?t open carry a pistol.?

While I personally find the open carry of rifles in built-up areas a bit off-putting, so long as things are cool with Home Depot that sounds like a fun event and a good use of a large, otherwise-unused section of parking lot.
When you’re having a big event, it makes sense to coordinate with the property owner rather than just showing up. Doubly so when people are openly armed.
However, it’s not quite clear if that’s the case:

Watkins said his group has been meeting at the Home Depot for almost a year, and unlike other businesses and cities like Arlington who have clashed with the group, the home improvement giant has ?stayed neutral.?
?They respect the rights of the people and we realize that,? Watkins said. ?Their parking lost are always huge so we can park in the back and not bother nobody.?
A representative for the North Richland Hills Home Depot said he had no information about the rally.
?That?s not something Home Depot sponsors,? said the man, who declined to give his name. ?They are not going to on the Home Depot property.?
Stephen Holmes, Home Depot?s corporate communications director, told Forbes, ?Our feeling is that, ultimately, the voters direct the laws on gun carry issues, so we defer to the prevailing ordinances in states and communities.?

Emphasis mine.
Good for Home Depot to stay neutral, but it sounds like the group — even though they’ve met there regularly — hasn’t really coordinated with the store itself. That’d probably be a good idea.
Fortunately, they’ve let the police know ahead of time so there shouldn’t be trouble from the cops:

[A]ccording to Watkins, the North Richland Hills police have been helpful with the planned rally.
?The police department has been notified and is coordinating with us,? he said. ?Everything is legal, as always.?

Naturally, the Demanding Mommies and a few others have posted to the Home Depot Facebook page saying they’re unhappy about the situation and will not shop at the store until they change their rules.
Honestly, Texas really should just allow open carry of handguns like Arizona and other states: with few exceptions, very few people notice or care a handgun holstered on a belt but they sure as hell will notice a slung rifle. It’d benefit gun owners in Texas and take the steam out of MDA by removing a point around which they can rally support and get media time.