Forget the Trumpettes swarming to Mar-a-Lago, and other gilded signs of post-presidency homage.

All that old money is too polite to say it out loud, but deep down in its stuffy blue-blooded heart, Palm Beach didn’t especially welcome Donald Trump to its shores.

They’ve made it clear they don’t especially care if the brash boy of Manhattan stays.

What was the straw and camel’s back moment between Trump and Palm Beach, you ask? The possibility of nuclear secrets in the bathroom with the tacky shower curtain? Or, this being Palm Beach, just the tacky shower curtain?

The spy-ish Chinese tourist who came to swim?

The nuclear football selfie in the dining room? Stiffing an 82-year-old chandelier maker? A book labeling the landmark as a nouveau riche grifter’s club?

Not so much.

But a road closure making the help late for work? Intolerable.

Post-assassination attempt, the Secret Service barricaded a scenic two-lane road leading from various mansions to downtown. The checkpoint keeps traffic well away from Mar-a-Lago.

But it also cuts the town in two.

It stalls drivers trying to replenish the supply of six-figure purses to Worth Avenue. It makes it harder for “caretakers” to get to work. It blocks Billionaires Row residents from an oceanfront drive into town, forcing them to take a bridge off the island to West Palm Beach — a city once used by Henry Flagler to house Palm Beach servants — then maneuver through 99 percenter-traffic before taking another bridge back onto the island.

It’s about four miles of mingling with the riffraff, quite a bit for a town that once required low-wage workers to carry special police-issued ID.

One month of the barricading and Palm Beach’s mayor floated the idea of closing the Mar-a-Lago club entirely.

“In my mind, if the road is closed, the Mar-a-Lago club is closed,” said Mayor Danielle Moore.

And Mar-a-Lago is a club. It is also a residence, a historic landmark and the object of a somewhat sketchy tax break.

Trump had to bargain his way into all that with the town council, partly with some promises he was reluctant to put into writing and partly with a proposal to build multiple McMansions if he didn’t get his way.

Very on brand.

“If there is one blade of grass out of order, there will be no certificate of occupancy,” threatened a Palm Beach Council member of the deal allowing Mar-a-Lago to be a club.

Very Palm Beach.

The showman and the town then seemed to settle into détente.

The mansion could still generate an occasional headline.

At one point, a couple of years after they were married in 2005, rumor had it that Melania Trump was decamping to Trump Tower because Mar-a-Lago rooms were too small.

Silly size question, I grumbled to myself as I made the obligatory check-it-out call. Trump himself jumped on the phone. The rooms there are plenty big, he enthusiastically advised. (Hindsight being 20/20, I now know I should have asked how many people could crowd into one. Probably a lot. Thousands, maybe.)

Sure, there have been irritations over the years between Trump and town: a too-big flag, banned wedding fireworks and more recently, requirements for a proposed Secret Service gatehouse that include matching shrubs and stone cladding.

Historic trees may not be touched. The view may not be obstructed.

And it cannot contribute to problems with crowd size.

Events at the club were already creating traffic jams, generating what one council member said were a “considerable” number of complaints from distressed residents trying to get into town.

Then came the shooting, and the concrete barricades.

By what legal right does the Secret Service presume to block a Palm Beach road, the town’s attorney demanded in a letter.

The Secret Service then silently sent its regards with a new partial ban on boating in the Atlantic and the Intracoastal waters bracketing Palm Beach.

The dark specter of marooned yachts loomed large.

On Monday, Trump abruptly called off the Secret Service. Take down the barricades when he’s not in town, he instructed. And boats will flow free unless he or someone else needing protection visits.

Maybe Trump was feeling magnanimous. Maybe he knows better than most that while picking a fight with the denizens of Palm Beach might not be a losing battle, it will be more siege than skirmish.

And maybe, just maybe, barricades at the gates would make it harder to fill up all those tiny little rooms at Mar-a-Lago.

Pat Beall is a columnist and editorial writer for the Sun Sentinel.