I'm not sure if this counts as I was one of the players...
we constantly used them to set traps, and we did it as a ritual not as a spell slot. (it was me I was a tome pact feylock so I got ritual caster and could learn rits from all lists). We would put up the (8 hour) tent, wait a little bit, put up a 2nd (8 hour) tent, then go into the dungeon or town or garrison, stir up trouble, run back to the 1st one and then use it as a perfect cover hit from range.... if they took down the 1st retreat to 2nd.
we used this to kill orcs, mind flayers, and everything between. The DM came up with the dispel idea but even that took a round to dispel, and then we would retreat to second one...
an elder brain told us it 'knew our tricks' and BOY did the DM regret that when we set up 4 huts, each with trap/traps around them and waited until the slaves and flayers started dyeing to home alone style traps... all the while since he had sent 3 groups out to hunt US, we entered and killed the elder brain now defenseless.